{"id":23931,"date":"2026-03-14T15:07:10","date_gmt":"2026-03-14T14:07:10","guid":{"rendered":"https:\/\/coincharge.io\/spark-explains-the-last-mile-solution-for-bitcoin-payments\/"},"modified":"2026-03-16T11:12:04","modified_gmt":"2026-03-16T10:12:04","slug":"spark-explains-the-last-mile-solution-for-bitcoin-payments","status":"publish","type":"post","link":"https:\/\/coincharge.io\/en\/spark-explains-the-last-mile-solution-for-bitcoin-payments\/","title":{"rendered":"Spark explains: The last-mile solution for Bitcoin payments?"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773492931339{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h1 style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong>Spark explains<\/strong><\/span><\/h1>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773496234636{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\"><strong><span style=\"color: #ffffff;\">The last-mile solution for Bitcoin payments?<\/span><\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493314854{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\"><strong>Why Spark is becoming increasingly important for wallets, merchants and Bitcoin payments<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"358\" data-end=\"533\">Anyone who deals with <strong data-start=\"371\" data-end=\"392\">Bitcoin payments<\/strong> quickly realizes:<br data-start=\"420\" data-end=\"423\" \/>After <strong data-start=\"428\" data-end=\"447\">Bitcoin Onchain<\/strong> and <strong data-start=\"452\" data-end=\"465\">Lightning<\/strong>, further <strong data-start=\"484\" data-end=\"532\">Bitcoin payment layers and last-mile solutions<\/strong> are emerging.<\/p>\n<p data-start=\"535\" data-end=\"591\">One of the most exciting developments is <strong data-start=\"581\" data-end=\"590\">Spark<\/strong>.<\/p>\n<p data-start=\"593\" data-end=\"893\">Spark wants to solve a problem that many Bitcoin users and wallet providers have known for years:<br data-start=\"687\" data-end=\"690\" \/><strong data-start=\"690\" data-end=\"893\">How can Bitcoin payments be made easily, quickly and self-custodially usable without users having to operate a Lightning Node, manage channels or deal with liquidity?<\/strong><\/p>\n<p data-start=\"895\" data-end=\"1194\">This is exactly where Spark comes in. According to Lightspark, Spark is a Bitcoin-native Layer 2 or settlement infrastructure that allows developers to build <strong data-start=\"1027\" data-end=\"1088\">instant, low-cost and self-custodial Bitcoin payments<\/strong> that are also <strong data-start=\"1113\" data-end=\"1150\">natively interoperable with Lightning<\/strong>.<\/p>\n<p data-start=\"1196\" data-end=\"1361\">Spark is therefore particularly interesting for people who want to <strong data-start=\"1214\" data-end=\"1238\">pay with Bitcoin<\/strong>, for wallet providers and for merchants who want to <strong data-start=\"1288\" data-end=\"1311\">accept Bitcoin<\/strong>.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493343099{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\"><strong>What is Spark simply explained?<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"1403\" data-end=\"1535\"><strong data-start=\"1403\" data-end=\"1457\">Spark is an additional Bitcoin payment layer<\/strong> designed to make everyday Bitcoin payments easier.<\/p>\n<p data-start=\"1537\" data-end=\"1552\">Simply put:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773493375642{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"1556\" data-end=\"1590\"><strong data-start=\"1556\" data-end=\"1575\">Bitcoin Onchain<\/strong> is the basis.<\/li>\n<li data-start=\"1593\" data-end=\"1651\"><strong data-start=\"1593\" data-end=\"1606\">Lightning<\/strong> makes Bitcoin payments fast and cheap.<\/li>\n<li data-start=\"1654\" data-end=\"1793\"><strong data-start=\"1654\" data-end=\"1663\">Spark<\/strong> is designed to make the use of Bitcoin and Lightning even easier &#8211; especially for wallets, mobile payments and payment recipients.<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"1795\" data-end=\"2036\">Spark describes itself as an infrastructure that enables wallets and apps to offer <strong data-start=\"1868\" data-end=\"1906\">self-custodial lightning payments<\/strong> <strong data-start=\"1924\" data-end=\"1997\">without nodes, channels or liquidity problems for the user<\/strong>.<\/p>\n<p data-start=\"2038\" data-end=\"2196\">So the goal is not to replace Lightning.<br data-start=\"2085\" data-end=\"2088\" \/>The goal is to <strong data-start=\"2102\" data-end=\"2195\">make Bitcoin payments via Lightning and Spark more suitable for everyday use for normal users<\/strong>.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493409622{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\"><strong>Why Spark is considered a last-mile solution<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"2245\" data-end=\"2307\">The term <strong data-start=\"2257\" data-end=\"2277\">last-mile solution<\/strong> fits quite well with Spark.<\/p>\n<p data-start=\"2309\" data-end=\"2419\">Because Spark takes care of exactly the part where Bitcoin payments often became complicated for normal users:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773493436353{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"2423\" data-end=\"2444\">Receipt of payments<\/li>\n<li data-start=\"2447\" data-end=\"2461\">Mobile use<\/li>\n<li data-start=\"2464\" data-end=\"2491\">Simple wallet setup<\/li>\n<li data-start=\"2494\" data-end=\"2535\">Self-custody without Lightning tinkering<\/li>\n<li data-start=\"2538\" data-end=\"2587\">Better user experience when sending and receiving<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"2589\" data-end=\"2996\">A particularly strong argument is that Spark supports <strong data-start=\"2636\" data-end=\"2662\">true offline receive<\/strong> for Lightning interoperability. The Spark documentation describes that the receiver <strong data-start=\"2772\" data-end=\"2798\">does not need to be online<\/strong> to receive a full Lightning payment. Furthermore, the receiver <strong data-start=\"2883\" data-end=\"2908\">does not<\/strong> need a <strong data-start=\"2883\" data-end=\"2908\">Lightning node<\/strong>, <strong data-start=\"2910\" data-end=\"2928\">channels<\/strong> or <strong data-start=\"2933\" data-end=\"2957\">force closures<\/strong>.<\/p>\n<p data-start=\"2998\" data-end=\"3138\">This is precisely why Spark is not a pure back-end technology for many observers, but a genuine <strong data-start=\"3095\" data-end=\"3137\">last-mile solution for Bitcoin payments<\/strong>.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493468973{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"1cykwcf\" data-start=\"3145\" data-end=\"3176\"><strong>What advantages Spark offers<\/strong><\/h2>\n<h3 style=\"text-align: center;\" data-section-id=\"1t1fbmw\" data-start=\"3178\" data-end=\"3232\"><\/h3>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<h3 data-section-id=\"1t1fbmw\" data-start=\"3178\" data-end=\"3232\">1. self-custody without the classic Lightning effort<\/h3>\n<p data-start=\"3234\" data-end=\"3390\">One of the biggest advantages of Spark is that<br data-start=\"3275\" data-end=\"3278\" \/>users should be able to <strong data-start=\"3305\" data-end=\"3325\">store<\/strong> their Bitcoin themselves without having to operate their own Lightning infrastructure.<\/p>\n<p data-start=\"3392\" data-end=\"3596\">Spark explicitly positions itself as a solution for <strong data-start=\"3444\" data-end=\"3480\">self-custodial Lightning Wallets<\/strong>, where users do not have to manage nodes, channels or liquidity logic.<\/p>\n<h3 data-section-id=\"9svkp5\" data-start=\"3598\" data-end=\"3625\">2. compatible with Lightning<\/h3>\n<p data-start=\"3627\" data-end=\"3890\">Spark is not positioned as a competitor to Lightning, but as a <strong data-start=\"3697\" data-end=\"3735\">Lightning-compatible infrastructure<\/strong>. Lightspark describes Spark as Bitcoin-L2, which makes it possible to <strong data-start=\"3800\" data-end=\"3851\">send and receive natively via Lightning<\/strong>.<\/p>\n<h3 data-section-id=\"bm2ayr\" data-start=\"3892\" data-end=\"3930\">3. fast and favorable payments<\/h3>\n<p data-start=\"3932\" data-end=\"4137\">Lightspark promotes Spark as an infrastructure for <strong data-start=\"3979\" data-end=\"3999\">instant payments<\/strong> with <strong data-start=\"4004\" data-end=\"4022\">near-zero costs<\/strong>. This makes Spark particularly interesting for mobile wallets and payment apps.<\/p>\n<h3 data-section-id=\"10joncr\" data-start=\"4139\" data-end=\"4161\">4. offline-receive<\/h3>\n<p data-start=\"4163\" data-end=\"4424\">The fact that users can receive payments without having to be online is one of the most practical differences to classic Lightning setups. This is a real advantage, especially for mobile wallets and point-of-sale scenarios.<\/p>\n<h3 data-section-id=\"bzs60k\" data-start=\"4426\" data-end=\"4465\">5. simple integration for wallets<\/h3>\n<p data-start=\"4467\" data-end=\"4845\">Wallet providers can integrate Spark either directly via the Spark Wallet SDK or via integrations such as <strong data-start=\"4566\" data-end=\"4579\">Breez SDK<\/strong>. Spark and Breez position this as a fast way to provide <strong data-start=\"4644\" data-end=\"4693\">self-custodial Lightning and Spark payments<\/strong> with additional features such as <strong data-start=\"4726\" data-end=\"4747\">Lightning Address<\/strong>, <strong data-start=\"4749\" data-end=\"4758\">LNURL<\/strong> and multiple platform bindings.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493509677{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"1cykwcf\" data-start=\"3145\" data-end=\"3176\"><strong>What disadvantages and trade-offs Spark has<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"4898\" data-end=\"4975\">As exciting as Spark is, the article should also clearly state the disadvantages.<\/p>\n<h3 data-section-id=\"6qwrh0\" data-start=\"4977\" data-end=\"5021\">1. privacy is not automatically perfect<\/h3>\n<p data-start=\"5023\" data-end=\"5444\">With <strong data-start=\"5037\" data-end=\"5050\">Sparkscan<\/strong>, Spark has an official public explorer for <strong data-start=\"5095\" data-end=\"5144\">transactions, addresses and network activity<\/strong>. Spark also documents a <strong data-start=\"5180\" data-end=\"5196\">privacy mode<\/strong> in which public APIs and explorers no longer return any data. This shows quite clearly:<br data-start=\"5290\" data-end=\"5293\" \/>Visibility can arise without suitable privacy settings or privacy-focused wallet implementation.<\/p>\n<h3 data-section-id=\"ouca15\" data-start=\"5446\" data-end=\"5510\">2. the wallet implementation makes a big difference<\/h3>\n<p data-start=\"5512\" data-end=\"5865\">Not all Spark wallets are the same.<br data-start=\"5541\" data-end=\"5544\" \/>Whether a Spark wallet is more openly visible or more privacy-oriented depends heavily on the specific integration. Spark itself documents, for example, that wallets can optionally embed a <strong data-start=\"5764\" data-end=\"5781\">Spark Address<\/strong> or a <strong data-start=\"5792\" data-end=\"5809\">Spark Invoice<\/strong> when generating Lightning Invoices.<\/p>\n<h3 data-section-id=\"qqhhqy\" data-start=\"5867\" data-end=\"5907\">3. new protocol, young ecosystem<\/h3>\n<p data-start=\"5909\" data-end=\"6191\">Spark is live, but is still a comparatively young ecosystem. Lightspark itself initially described Spark as a beta. Anyone using or integrating Spark is therefore still operating in a young market with a corresponding development risk.<\/p>\n<h3 data-section-id=\"3k3g45\" data-start=\"6193\" data-end=\"6253\">4. additional infrastructure and operational dependencies<\/h3>\n<p data-start=\"6255\" data-end=\"6549\">Wallet of Satoshi explicitly states in its Disclosure Document that the self-custody function depends on a <strong data-start=\"6375\" data-end=\"6422\">third-party Layer 2 system from Lightspark<\/strong> and that this may incur additional fees and operational risks.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493549333{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"1cykwcf\" data-start=\"3145\" data-end=\"3176\"><strong>Why wallets integrate Spark<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"6592\" data-end=\"6620\">The simple answer is:<\/p>\n<p data-start=\"6622\" data-end=\"6717\"><strong data-start=\"6622\" data-end=\"6717\">Because Spark defuses the big wallet problem: bringing together good UX and self-custody.<\/strong><\/p>\n<p data-start=\"6719\" data-end=\"6766\">For a long time, wallets often had to choose between:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773493582754{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"6770\" data-end=\"6820\"><strong data-start=\"6770\" data-end=\"6799\">simple user experience<\/strong>, but rather custodial<\/li>\n<li data-start=\"6823\" data-end=\"6887\"><strong data-start=\"6823\" data-end=\"6839\">Self-custody<\/strong>, but technically complicated lightning use<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"6889\" data-end=\"7162\">Spark promises a middle ground here.<br data-start=\"6933\" data-end=\"6936\" \/>Spark explicitly advertises its infrastructure for wallets that want to deliver <strong data-start=\"7000\" data-end=\"7052\">&#8220;real Lightning payments with real self-custody&#8221;<\/strong> &#8211; without node operation, channels and liquidity problems.<\/p>\n<p data-start=\"7164\" data-end=\"7212\">This is attractive for wallet providers because they:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773493609559{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"7216\" data-end=\"7243\">can go live faster<\/li>\n<li data-start=\"7246\" data-end=\"7295\">need to build less Lightning complexity of your own<\/li>\n<li data-start=\"7298\" data-end=\"7326\">be able to offer self-custody<\/li>\n<li data-start=\"7329\" data-end=\"7379\">Bitcoin, Lightning and Spark can merge<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493629228{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"1jeu3nv\" data-start=\"7386\" data-end=\"7430\"><strong>Wallet of Satoshi: Spark for self-custody<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<h3 data-start=\"203\" data-end=\"471\"><strong>Wallet of Satoshi: Spark in practice &#8211; with a clearly recognizable privacy disadvantage<\/strong><\/h3>\n<p data-start=\"203\" data-end=\"471\"><strong data-start=\"203\" data-end=\"224\">Wallet of Satoshi<\/strong> is one of the best-known examples of Spark in practice. For users in Europe and the USA, Wallet of Satoshi is now <strong data-start=\"398\" data-end=\"460\">only<\/strong> offered in the App Store <strong data-start=\"398\" data-end=\"460\">as a self-custody solution based on Spark<\/strong> for regulatory reasons.<\/p>\n<p data-start=\"473\" data-end=\"823\">This is remarkable because Wallet of Satoshi has long been known primarily as a particularly simple Lightning wallet. With Spark, Wallet of Satoshi can now continue to offer a very simple user experience without users having to operate a Lightning node themselves, manage channels or deal with classic Lightning complexity.<\/p>\n<h3 data-section-id=\"12d1ygu\" data-start=\"825\" data-end=\"863\"><strong>The disadvantage of Wallet of Satoshi<\/strong><\/h3>\n<p data-start=\"865\" data-end=\"961\">However, Wallet of Satoshi also reveals an important disadvantage of this implementation:<\/p>\n<p data-start=\"963\" data-end=\"1060\"><strong data-start=\"963\" data-end=\"1060\">The corresponding Spark address can be derived from the wallet-of-Satoshi-Lightning address.<\/strong><\/p>\n<p data-start=\"1062\" data-end=\"1175\">If you know this Spark address, you can then call it up via <strong data-start=\"1129\" data-end=\"1142\">Sparkscan<\/strong>. This makes it visible:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773495470521{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"1179\" data-end=\"1231\">which transactions have been made via this wallet<\/li>\n<li data-start=\"1234\" data-end=\"1268\">how high the current credit balance is<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"1270\" data-end=\"1450\">In practice, this Spark wallet behaves somewhat similarly to a Bitcoin onchain address, which can also be viewed publicly in a block explorer.<\/p>\n<h3 data-section-id=\"1dextx1\" data-start=\"1452\" data-end=\"1503\"><strong>Practical example: How to test it yourself<\/strong><\/h3>\n<p data-start=\"1505\" data-end=\"1564\">If you want to understand this, you can try it out for yourself:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773495535504{margin-left: 50px !important;}&#8221;]\n<ol>\n<li data-section-id=\"l4dmh2\" data-start=\"1566\" data-end=\"1619\">\n<p data-start=\"1569\" data-end=\"1619\">Take a <strong data-start=\"1579\" data-end=\"1618\">Wallet-of-Satoshi-Lightning address<\/strong>.<\/p>\n<\/li>\n<li data-section-id=\"1akojbl\" data-start=\"1620\" data-end=\"1716\">\n<p data-start=\"1623\" data-end=\"1716\">Enter them on the following page:<br data-start=\"1657\" data-end=\"1660\" \/><code data-start=\"1663\" data-end=\"1716\"><a href=\"https:\/\/reneaaron.github.io\/spark-lnaddress-doxxer\/\" target=\"_blank\" rel=\"noopener\">https:\/\/reneaaron.github.io\/spark-lnaddress-doxxer\/<\/a><\/code><\/p>\n<\/li>\n<li data-section-id=\"14eiiru\" data-start=\"1717\" data-end=\"1800\">\n<p data-start=\"1720\" data-end=\"1800\">The corresponding <strong data-start=\"1771\" data-end=\"1788\">Spark address<\/strong> is derived from the Lightning address.<\/p>\n<\/li>\n<li data-section-id=\"tvbmkj\" data-start=\"1801\" data-end=\"1900\">\n<p data-start=\"1804\" data-end=\"1900\">You then enter this Spark address here:<br data-start=\"1855\" data-end=\"1858\" \/><code data-start=\"1861\" data-end=\"1900\"><a href=\"https:\/\/sparkscan.io\/?network=mainnet\" target=\"_blank\" rel=\"noopener\">https:\/\/sparkscan.io\/?network=mainnet<\/a><\/code><\/p>\n<\/li>\n<li data-section-id=\"m3jsmr\" data-start=\"1901\" data-end=\"2027\">\n<p data-start=\"1904\" data-end=\"2027\">You can then see which transactions belong to this Spark address and how high the current wallet balance is.<\/p>\n<\/li>\n<\/ol>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"2029\" data-end=\"2214\">This makes it very clear that while Spark can provide a simple self-custody experience, the specific wallet implementation has a major impact on <strong data-start=\"2193\" data-end=\"2209\">privacy<\/strong>.<\/p>\n<h3 data-section-id=\"1qxus2t\" data-start=\"2216\" data-end=\"2266\"><strong>Important: This does not apply to all Spark wallets<\/strong><\/h3>\n<p data-start=\"2268\" data-end=\"2293\">This point is important:<\/p>\n<p data-start=\"2295\" data-end=\"2365\"><strong data-start=\"2295\" data-end=\"2365\">This behavior does not apply to all wallets that use Spark.<\/strong><\/p>\n<p data-start=\"2367\" data-end=\"2655\">With <strong data-start=\"2371\" data-end=\"2383\">Coinsnap<\/strong>, <strong data-start=\"2385\" data-end=\"2400\">Cake Wallet<\/strong> and other Spark wallets, this derivation from the Lightning address is <strong data-start=\"2473\" data-end=\"2490\">not possible<\/strong>. This means that the Spark address cannot be determined in this way and the balance or transaction history subsequently made visible via Sparkscan.<\/p>\n<p data-start=\"2657\" data-end=\"2724\">This shows very clearly what is important for Spark in practice:<\/p>\n<p data-start=\"2726\" data-end=\"2842\"><strong data-start=\"2726\" data-end=\"2842\">It is not only Spark itself that is decisive, but above all the type of implementation in the respective wallet.<\/strong><\/p>\n<h3 data-section-id=\"nxgote\" data-start=\"2844\" data-end=\"2913\">Why this is important for comparison with other Spark wallets<\/h3>\n<p data-start=\"2915\" data-end=\"3030\">Wallet of Satoshi is a particularly interesting example because it demonstrates two things at the same time:<\/p>\n<p data-start=\"3032\" data-end=\"3249\">On the one hand, Spark enables self-custody and a simple user experience.<br data-start=\"3110\" data-end=\"3113\" \/>On the other hand, the specific implementation can lead to significantly weaker privacy than with other Spark wallets.<\/p>\n<p data-start=\"3251\" data-end=\"3417\">For users, this means:<br data-start=\"3275\" data-end=\"3278\" \/>When comparing Spark wallets, you should not only pay attention to <strong data-start=\"3340\" data-end=\"3346\">whether<\/strong> a wallet uses Spark, but also <strong data-start=\"3386\" data-end=\"3393\">how<\/strong> Spark has been integrated.<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"8492\" data-end=\"8786\">See also: <a href=\"https:\/\/coincharge.io\/en\/wallet-of-satoshi\/\">Wallet of Satoshi<\/a><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773493699306{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"1jeu3nv\" data-start=\"7386\" data-end=\"7430\"><strong>Cake Wallet: Spark via Breez<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"8827\" data-end=\"8879\"><strong data-start=\"8827\" data-end=\"8842\">Cake Wallet<\/strong> is another important example.<\/p>\n<p data-start=\"8881\" data-end=\"9108\">Spark itself writes that Cake Wallet rolled out <strong data-start=\"8938\" data-end=\"8966\">self-custodial Lightning<\/strong> via the <strong data-start=\"8976\" data-end=\"8989\">Breez SDK<\/strong>, built on Spark infrastructure, to more than 1 million users in early March 2026.<\/p>\n<p data-start=\"9110\" data-end=\"9279\">This shows an interesting difference to Wallet of Satoshi:<br data-start=\"9173\" data-end=\"9176\" \/>Cake Wallet does not rely on a pure direct integration of Spark, but on the path <strong data-start=\"9264\" data-end=\"9278\">via Breez<\/strong>.<\/p>\n<p data-start=\"9281\" data-end=\"9375\">This is important because Breez offers additional functions and abstractions, for example for:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773493724290{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"9379\" data-end=\"9396\">Lightning Address<\/li>\n<li data-start=\"9399\" data-end=\"9404\">LNURL<\/li>\n<li data-start=\"9407\" data-end=\"9431\">Multi-platform bindings<\/li>\n<li data-start=\"9434\" data-end=\"9464\">nodeless Lightning integration<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"9466\" data-end=\"9657\">Spark explicitly documents Breez as a convenient integration path for developers who want to integrate more than just the basic functions of Spark.<\/p>\n<h3 data-section-id=\"1sqztei\" data-start=\"9659\" data-end=\"9686\">Advantage for Cake Wallet<\/h3>\n<p data-start=\"9688\" data-end=\"9934\">The advantage is obvious:<br data-start=\"9719\" data-end=\"9722\" \/>Cake Wallet can integrate Lightning and Spark functionality without having to build the entire complexity from scratch. At the same time, the wallet remains self-custodial.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773496202153{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"mim3jk\" data-start=\"9941\" data-end=\"9996\"><strong>Coinsnap Wallet: point of sale and self-custody wallet in one app<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"700\" data-end=\"1260\">A particularly practical example of Spark in retail is the <strong data-start=\"763\" data-end=\"782\">Coinsnap wallet<\/strong>.<br data-start=\"783\" data-end=\"786\" \/>Coinsnap positions the solution as a <strong data-start=\"823\" data-end=\"887\">self-custodial Bitcoin wallet with an integrated point of sale<\/strong>, which was specially developed for use in stationary retail. On the POS page, Coinsnap describes the app as &#8220;The Bitcoin Point of Sale Wallet for Real-World Business&#8221; and emphasizes that payments are credited directly to the user&#8217;s own wallet &#8211; without an exchange account, without custody risk and without technical complexity.<\/p>\n<p data-start=\"1262\" data-end=\"1371\">According to the product page, the Coinsnap Wallet is primarily aimed at companies with direct customer contact, for example:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773495982743{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"1375\" data-end=\"1380\">Caf\u00e9s<\/li>\n<li data-start=\"1383\" data-end=\"1395\">Retail trade<\/li>\n<li data-start=\"1398\" data-end=\"1409\">Food Trucks<\/li>\n<li data-start=\"1412\" data-end=\"1423\">Market stalls<\/li>\n<li data-start=\"1426\" data-end=\"1438\">Event stands<\/li>\n<li data-start=\"1441\" data-end=\"1502\">Service companies<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]At the same time, the solution is also interesting for other areas of application:[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773496007553{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"1581\" data-end=\"1675\">for merchants who want to receive Bitcoin payments in the store directly on their own wallet<\/li>\n<li data-start=\"1678\" data-end=\"1762\">for Coinsnap merchants who want to combine wallet and acceptance solution in one app<\/li>\n<li data-start=\"1765\" data-end=\"1918\">for users looking for a simple self-custodial Bitcoin wallet with Lightning, Spark and on-chain support<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]The Coinsnap Wallet combines wallet and point of sale in one app and provides support:[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773496043550{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"2012\" data-end=\"2040\"><strong data-start=\"2012\" data-end=\"2040\">self-custodial Lightning<\/strong><\/li>\n<li data-start=\"2043\" data-end=\"2061\"><strong data-start=\"2043\" data-end=\"2061\">Spark Payments<\/strong><\/li>\n<li data-start=\"2064\" data-end=\"2083\"><strong data-start=\"2064\" data-end=\"2083\">Bitcoin Onchain<\/strong><\/li>\n<li data-start=\"2086\" data-end=\"2119\"><strong data-start=\"2086\" data-end=\"2119\">your own Lightning Address<\/strong><\/li>\n<li data-start=\"2122\" data-end=\"2164\"><strong data-start=\"2122\" data-end=\"2164\">Bitcoin-native representation in Satoshis<\/strong><\/li>\n<li data-start=\"2167\" data-end=\"2236\"><strong data-start=\"2167\" data-end=\"2198\">Fiat values for reference only<\/strong><\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]The additional point-of-sale functions that Coinsnap mentions on the POS page are particularly exciting for retailers:[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773496088149{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"2358\" data-end=\"2387\"><strong data-start=\"2358\" data-end=\"2387\">Amount entry via keypad<\/strong><\/li>\n<li data-start=\"2390\" data-end=\"2408\"><strong data-start=\"2390\" data-end=\"2408\">Product catalog<\/strong><\/li>\n<li data-start=\"2411\" data-end=\"2430\"><strong data-start=\"2411\" data-end=\"2430\">Bitcoin discounts<\/strong><\/li>\n<li data-start=\"2433\" data-end=\"2471\"><strong data-start=\"2433\" data-end=\"2471\">Separate terminals per employee<\/strong><\/li>\n<li data-start=\"2474\" data-end=\"2507\"><strong data-start=\"2474\" data-end=\"2507\">Integrated tipping function<\/strong><\/li>\n<li data-start=\"2510\" data-end=\"2622\"><strong data-start=\"2510\" data-end=\"2584\">Tips directly to the Lightning Wallet of the respective employee<\/strong><\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"2624\" data-end=\"3020\">This makes Coinsnap one of the most interesting Spark examples in the merchant sector, because Spark is not only used here as a wallet technology, but also as a <strong data-start=\"2782\" data-end=\"2857\">practical last-mile solution for Bitcoin payments in stationary retail<\/strong>. Coinsnap itself writes that Spark is used to provide a &#8220;smooth self-custodial Lightning experience&#8221;.<\/p>\n<h3 data-section-id=\"vr4vi7\" data-start=\"3022\" data-end=\"3069\">Why Coinsnap is a particularly good fit for Spark<\/h3>\n<p data-start=\"3071\" data-end=\"3245\">Coinsnap is therefore not just another Bitcoin wallet, but a <strong data-start=\"3150\" data-end=\"3209\">merchant-first developed Bitcoin point-of-sale wallet<\/strong>. This fits in very well with Spark.<\/p>\n<p data-start=\"3247\" data-end=\"3311\">This is particularly attractive for small retailers, because they are primarily:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773496128379{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"3315\" data-end=\"3356\"><strong data-start=\"3315\" data-end=\"3356\">Simply accept Bitcoin payments<\/strong><\/li>\n<li data-start=\"3359\" data-end=\"3388\"><strong data-start=\"3359\" data-end=\"3388\">Use a mobile solution<\/strong><\/li>\n<li data-start=\"3391\" data-end=\"3441\"><strong data-start=\"3391\" data-end=\"3441\">do not operate their own Lightning infrastructure<\/strong><\/li>\n<li data-start=\"3444\" data-end=\"3494\"><strong data-start=\"3444\" data-end=\"3494\">retain full control over their Bitcoin<\/strong><\/li>\n<li data-start=\"3497\" data-end=\"3594\">want to <strong data-start=\"3497\" data-end=\"3548\">work without an exchange and without third-party custody<\/strong>.<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]This is precisely where Spark comes into its own:<br data-start=\"3650\" data-end=\"3653\" \/><strong data-start=\"3653\" data-end=\"3757\">fast payments, self-custody, Lightning compatibility and ease of use at the point of sale<\/strong>. Coinsnap combines these features with an interface clearly geared towards merchants and functions for real cash register operations.[\/vc_column_text][vc_column_text css=&#8221;&#8221;]To the <a href=\"https:\/\/coinsnap.io\/pos\" target=\"_blank\" rel=\"noopener\">Coinsnap Wallet Point of Sale solution<\/a>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773494108302{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"mim3jk\" data-start=\"9941\" data-end=\"9996\"><strong>Direct Spark integration vs. Spark via Breez<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"11601\" data-end=\"11719\">An important point for wallet providers is the question:<br data-start=\"11655\" data-end=\"11658\" \/><strong data-start=\"11658\" data-end=\"11719\">Build directly on Spark or integrate Spark via Breez?<\/strong><\/p>\n<h3 data-section-id=\"14ktsdq\" data-start=\"11721\" data-end=\"11750\">Direct Spark integration<\/h3>\n<p data-start=\"11752\" data-end=\"11986\">With direct Spark integration, the wallet uses the Spark SDK directly. Spark documents its own wallet SDKs and APIs for wallet management, Bitcoin, Lightning and other functions.<\/p>\n<p data-start=\"11752\" data-end=\"11986\"><strong>Advantages:<\/strong><\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773494160404{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"12005\" data-end=\"12042\">Direct access to Spark functions<\/li>\n<li data-start=\"12045\" data-end=\"12084\">More control over the implementation<\/li>\n<li data-start=\"12087\" data-end=\"12120\">Potentially leaner architecture<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]<strong>Disadvantages:<\/strong>[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773494192853{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"12140\" data-end=\"12173\">More personal effort for Wallet team<\/li>\n<li data-start=\"12176\" data-end=\"12243\">more responsibility for UX, Lightning Address, LNURL and additional logic<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<h3 data-section-id=\"1ssjcn2\" data-start=\"12245\" data-end=\"12265\">Spark about Breez<\/h3>\n<p data-start=\"12267\" data-end=\"12568\">When integrating via Breez, the wallet uses the <strong data-start=\"12319\" data-end=\"12332\">Breez SDK<\/strong>, which Spark integrates in the background. Spark documents Breez as a way for developers who want to integrate <strong data-start=\"12441\" data-end=\"12490\">self-custodial Lightning and Spark payments<\/strong> with additional functions with little effort.<\/p>\n<p data-start=\"12570\" data-end=\"12583\"><strong data-start=\"12570\" data-end=\"12583\">Advantages:<\/strong><\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773494227793{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"12587\" data-end=\"12609\">Faster integration<\/li>\n<li data-start=\"12612\" data-end=\"12636\">Many ready-made functions<\/li>\n<li data-start=\"12639\" data-end=\"12703\">Lightning Address, LNURL and other features already integrated<\/li>\n<li data-start=\"12706\" data-end=\"12726\">less personal effort<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]<strong>Disadvantages:<\/strong>[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773494262217{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"12746\" data-end=\"12762\">more abstraction<\/li>\n<li data-start=\"12765\" data-end=\"12830\">less direct control over individual Spark-specific details<\/li>\n<li data-start=\"12833\" data-end=\"12883\">Additional dependency on Breez as SDK layer<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773494287190{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"mim3jk\" data-start=\"9941\" data-end=\"9996\"><strong>What users get from a Spark wallet<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]For normal users, the added value of a Spark wallet is pretty clear:[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773494316717{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"13007\" data-end=\"13106\"><strong data-start=\"13007\" data-end=\"13023\">Self-custody<\/strong>, without the classic Lightning operating stress<\/li>\n<li data-start=\"13109\" data-end=\"13171\"><strong data-start=\"13109\" data-end=\"13131\">Fast payments<\/strong><\/li>\n<li data-start=\"13174\" data-end=\"13234\"><strong data-start=\"13174\" data-end=\"13194\">Low fees<\/strong><\/li>\n<li data-start=\"13237\" data-end=\"13308\"><strong data-start=\"13237\" data-end=\"13268\">Easier wallet experience<\/strong><\/li>\n<li data-start=\"13311\" data-end=\"13394\"><strong data-start=\"13311\" data-end=\"13330\">Offline-Receive<\/strong> as a practical advantage<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]This is particularly interesting for people who want to pay with Bitcoin without having to use Lightning &#8220;as a hobby&#8221;.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773494348673{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"mim3jk\" data-start=\"9941\" data-end=\"9996\"><strong>What payees have from Spark<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]Spark also offers clear advantages for payment recipients &#8211; i.e. merchants, self-employed persons, POS users or online merchants:[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773494375725{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"13698\" data-end=\"13745\">Payments can be <strong data-start=\"13715\" data-end=\"13738\">received more easily<\/strong><\/li>\n<li data-start=\"13748\" data-end=\"13829\"><strong data-start=\"13748\" data-end=\"13779\">No separate Lightning Node<\/strong> is required<\/li>\n<li data-start=\"13832\" data-end=\"13903\"><strong data-start=\"13832\" data-end=\"13848\">Self-custody<\/strong> remains possible<\/li>\n<li data-start=\"13906\" data-end=\"13957\">Mobile wallets and POS solutions are becoming more practical<\/li>\n<li data-start=\"13960\" data-end=\"14017\">Lightning complexity disappears more into the background<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]This is precisely why Spark is not only interesting for wallet apps, but also for <strong data-start=\"14087\" data-end=\"14107\">payment solutions<\/strong> and <strong data-start=\"14112\" data-end=\"14143\">Bitcoin acceptance in retail<\/strong>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773494404280{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"mim3jk\" data-start=\"9941\" data-end=\"9996\"><strong>Conclusion: Spark is more than just another Bitcoin layer<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"14224\" data-end=\"14340\">Spark is not just a technical gimmick, but a serious <strong data-start=\"14297\" data-end=\"14339\">last-mile solution for Bitcoin payments<\/strong>.<\/p>\n<p data-start=\"14342\" data-end=\"14458\">The big attraction is that Spark wants to bring together several things that were previously difficult to combine:<\/p>\n[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773494433853{margin-left: 50px !important;}&#8221;]\n<ul>\n<li data-start=\"14462\" data-end=\"14478\"><strong data-start=\"14462\" data-end=\"14478\">Self-Custody<\/strong><\/li>\n<li data-start=\"14481\" data-end=\"14509\"><strong data-start=\"14481\" data-end=\"14509\">Simple user experience<\/strong><\/li>\n<li data-start=\"14512\" data-end=\"14543\"><strong data-start=\"14512\" data-end=\"14543\">Lightning interoperability<\/strong><\/li>\n<li data-start=\"14546\" data-end=\"14581\"><strong data-start=\"14546\" data-end=\"14581\">Fast and favorable payments<\/strong><\/li>\n<li data-start=\"14584\" data-end=\"14640\"><strong data-start=\"14584\" data-end=\"14640\">Better reception logic for mobile wallets and merchants<\/strong><\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221;]\n<p data-start=\"14642\" data-end=\"15009\">The fact that wallets such as <strong data-start=\"14659\" data-end=\"14680\">Wallet of Satoshi<\/strong> and <strong data-start=\"14685\" data-end=\"14700\">Cake Wallet<\/strong> are already using Spark shows why the topic is becoming increasingly important. And if the <strong data-start=\"14788\" data-end=\"14807\">Coinsnap wallet<\/strong> goes live as announced as a self-custodial wallet with an integrated point of sale, Spark will also become even more relevant for brick-and-mortar retailers and merchants who want to <strong data-start=\"14961\" data-end=\"14984\">accept Bitcoin<\/strong>.<\/p>\n<p data-start=\"15011\" data-end=\"15052\">The most important finding is therefore:<\/p>\n<p data-start=\"15054\" data-end=\"15195\"><strong data-start=\"15054\" data-end=\"15195\">After Onchain and Lightning, further Bitcoin payment layers and last-mile solutions are emerging. Spark is currently one of the most exciting of these. <\/strong><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773494462828{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;]\n<h2 style=\"text-align: center;\" data-section-id=\"mim3jk\" data-start=\"9941\" data-end=\"9996\"><strong>FAQ: Spark, Lightning and Bitcoin payments<\/strong><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<h3 data-section-id=\"nzbosw\" data-start=\"15249\" data-end=\"15278\">What is Spark with Bitcoin?<\/h3>\n<p data-start=\"15279\" data-end=\"15569\">Spark is an additional Bitcoin payment layer designed to make Bitcoin and Lightning payments easier, faster and self-custodial. Spark is natively interoperable with Lightning and is particularly aimed at wallets and payment apps.<\/p>\n<h3 data-section-id=\"e37i\" data-start=\"15571\" data-end=\"15609\">Is Spark a replacement for Lightning?<\/h3>\n<p data-start=\"15610\" data-end=\"15831\">No. Spark is not intended as a replacement for Lightning. Spark is Lightning-compatible and aims to simplify the use of Bitcoin and Lightning payments for wallets and users.<\/p>\n<h3 data-section-id=\"afgo5j\" data-start=\"15833\" data-end=\"15874\">Why is Spark considered a last-mile solution?<\/h3>\n<p data-start=\"15875\" data-end=\"16107\">Because Spark addresses exactly the problems that arise in the everyday use of Bitcoin payments: complicated wallet setup, channel management, liquidity and offline receive.<\/p>\n<h3 data-section-id=\"1qhhrq\" data-start=\"16109\" data-end=\"16138\">What are the advantages of Spark?<\/h3>\n<p data-start=\"16139\" data-end=\"16383\">The most important advantages include self-custody without the classic Lightning effort, Lightning compatibility, fast and inexpensive payments, offline receive and simpler integration for wallets.<\/p>\n<h3 data-section-id=\"ij1qm1\" data-start=\"16385\" data-end=\"16415\">What are the disadvantages of Spark?<\/h3>\n<p data-start=\"16416\" data-end=\"16682\">The disadvantages include possible privacy trade-offs, a still young ecosystem and additional infrastructure dependencies. The extent to which these points come into play also depends on the wallet implementation in question.<\/p>\n<h3 data-section-id=\"wdrgci\" data-start=\"16684\" data-end=\"16740\">Why do Wallet of Satoshi and Cake Wallet use Spark?<\/h3>\n<p data-start=\"16741\" data-end=\"16963\">Because Spark gives wallets the opportunity to offer self-custodial Lightning payments with a better user experience, without users having to operate Lightning infrastructure themselves.<\/p>\n<h3 data-section-id=\"1niriec\" data-start=\"16965\" data-end=\"17035\">What is the difference between Spark direct and Spark via Breez?<\/h3>\n<p data-start=\"17036\" data-end=\"17330\">With direct Spark integration, the wallet uses Spark directly via the Spark SDK. When integrating via Breez, the wallet uses the Breez SDK, which integrates Spark in the background and provides additional functions such as Lightning Address and LNURL.<\/p>\n<h3 data-section-id=\"85t8gw\" data-start=\"17332\" data-end=\"17369\">Is Spark interesting for retailers?<\/h3>\n<p data-start=\"17370\" data-end=\"17615\">Yes, Spark is particularly interesting for merchants who want to accept Bitcoin payments easily, mobile and self-custodially. This applies in particular to wallets or POS solutions with Spark support.<\/p>\n<h3 data-section-id=\"1vnagvt\" data-start=\"17617\" data-end=\"17648\">What is the Coinsnap Wallet?<\/h3>\n<p data-start=\"17649\" data-end=\"18026\">The <strong data-start=\"1059\" data-end=\"1078\">Coinsnap wallet<\/strong> is a <strong data-start=\"1088\" data-end=\"1152\">self-custodial Bitcoin wallet with an integrated point of sale<\/strong> for merchants. It supports <strong data-start=\"1182\" data-end=\"1195\">Lightning<\/strong>, <strong data-start=\"1197\" data-end=\"1216\">Bitcoin Onchain<\/strong> and <strong data-start=\"1221\" data-end=\"1239\">Spark Payments<\/strong> and makes it possible to receive Bitcoin payments directly on your own wallet. According to Coinsnap Wallet, it is primarily aimed at stationary retailers and companies with direct customer contact.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text css=&#8221;.vc_custom_1773492931339{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;] Spark explains [\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1773496234636{padding-top: 30px !important;padding-bottom: 30px !important;background-color: #6193C9 !important;}&#8221;] The last-mile [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23958,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[37],"tags":[],"class_list":["post-23931","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/posts\/23931","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/comments?post=23931"}],"version-history":[{"count":3,"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/posts\/23931\/revisions"}],"predecessor-version":[{"id":23964,"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/posts\/23931\/revisions\/23964"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/media\/23958"}],"wp:attachment":[{"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/media?parent=23931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/categories?post=23931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coincharge.io\/en\/wp-json\/wp\/v2\/tags?post=23931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}