What is Wallet of Satoshi?

Wallet of Satoshi is a bitcoin wallet app built around the Lightning Network, aimed at people who want to send and receive small payments quickly. For years it was a custodial wallet, meaning the company held the bitcoin for its users. It now runs two models side by side, and which one you get depends on where you live. For how Lightning payments work in general, see what the Lightning Network is.

Is Wallet of Satoshi custodial?

It can be either. The company's disclosure document, last updated in August 2026, describes a self-custody model available globally and a custodial model available only in selected regions. Where both exist, you can switch in the settings, which may mean moving funds.

The self-custody mode uses Spark, a third-party layer 2 from Lightspark, announced as a beta partnership in July 2025. Spark handles channels, routing and liquidity in the background. In this mode you hold a recovery phrase, and the company states it cannot recover or reset your keys. Custodial accounts are capped at 5 BTC in total and 5 BTC per transaction, and they carry the usual risks of a company holding funds. The general trade-off is explained in custodial vs non-custodial wallets.

What are Wallet of Satoshi fees?

As of November 2026, the support pages and disclosure list:

• No platform fee for sending or receiving over Lightning. Senders may pay small routing fees to other nodes, which the company does not keep.
• 1.95% on bitcoin received to an on-chain address.
• 1.95% plus a fixed processing fee for custodial on-chain sends, with a minimum send of 0.00003 BTC.
• 1.95% plus the miner fee for on-chain sends from the self-custody wallet.

Spark may charge its own fees, and the company says fees can change. The app shows the network fee before you confirm.

How does a Wallet of Satoshi withdrawal work?

There is no separate withdrawal button. Moving bitcoin out is simply a send. You scan or paste a Lightning invoice, Lightning address, LNURL or regular bitcoin address, and the app detects which kind it is. Sending to another Lightning wallet is the cheapest route. Sending to an on-chain address triggers the on-chain fee above. To receive, the app shows your Lightning address by default, with a button to switch to an on-chain address. Read more in what a Lightning invoice and Lightning address are.

Is the Wallet of Satoshi app available in the US?

The company pulled its app from the US Apple and Google stores in November 2024, according to Bitcoin Magazine. When it announced the Spark partnership in July 2025, it said self-custody gave it a path to serve US users again. As of November 2026, its disclosure says self-custody is offered worldwide except in restricted jurisdictions, while custodial service is limited to designated regions. Check the app store and terms in your country, because availability can change.