[Wallets](https://revain.org/wallets/) › Wallet of Satoshi

# Wallet of Satoshi: keys, security, fees and reviews

## In short

- **Account model**: Two models: self-custody, available globally, and custodial, available only in selected regions; custodial is assigned first where it is offered.
- **Fees**: Buy / sell: 1.95% on Bitcoin top-ups in both modes.
- **Risks and caveats**: Custodial mode means WoS holds the keys; balances and single transactions are capped at 5 BTC.
- **Checked**: 31 October 2026

## Key facts

- **Official site**: [walletofsatoshi.com](https://www.walletofsatoshi.com/)

Key facts checked on 31 October 2026 against official sources.

## What is Wallet of Satoshi

Wallet of Satoshi (WoS) is a Bitcoin and Lightning wallet app for iOS and Android made by the Australian company Wallet of Satoshi Pty Ltd. It started as a fully custodial wallet and now also offers a self-custodial mode powered by Lightspark's Spark layer 2; the app assigns the mode by region.

## Who holds the keys

| Parameter | Details |
|---|---|
| Account model | Two models: self-custody, available globally, and custodial, available only in selected regions; custodial is assigned first where it is offered. |
| Custodian | In custodial mode Wallet of Satoshi, or its service providers, holds the keys and funds; balances are capped at 5 BTC. |
| Key control | In self-custody mode, built on Spark by Lightspark, the user holds the keys and WoS cannot access or recover them. |
| Recovery | Custodial accounts are recovered by email login; self-custody wallets only with the user's seed phrase backup. |

## Features and supported networks

| Parameter | Details |
|---|---|
| Platforms | Mobile apps for iOS and Android. |
| Supported networks | Bitcoin only: Lightning invoices, Lightning addresses and on-chain Bitcoin addresses. |
| Buy / sell | In-app Bitcoin purchase in many countries, through partners that vary by region. |
| Lightning | Each user gets a Lightning address (name@walletofsatoshi.com), randomly generated or custom. |

## Security and audits

- The source code is not published; no open-source licence is listed on the official site.
- No third-party security audit is published.
- Self-custody mode relies on Spark by Lightspark, whose terms also apply and whose services come without warranties.
- Custodial accounts carry the risk of WoS insolvency, security incidents or regulatory action, as the vendor itself states.

## Security incidents

No security incident is recorded in the sources checked on 31 October 2026 (the company’s own channels and incident databases): [defillama.com/hacks](https://defillama.com/hacks), [hacked.slowmist.io/search](https://hacked.slowmist.io/search/), [rekt.news/leaderboard](https://rekt.news/leaderboard/), [walletofsatoshi.com](https://www.walletofsatoshi.com/)

## Fees

| Parameter | Details |
|---|---|
| Buy / sell | 1.95% on Bitcoin top-ups in both modes. |
| Wallet | On-chain sends: 1.95% plus a network-based fixed fee (custodial) or miner fees (self-custody); no WoS fee on incoming Lightning payments; Lightning routing fees go to network providers. |

## History

| Date | Event |
|---|---|
| 11 March 2024 | Country availability list for the iOS and Android apps last updated. |
| 24 November 2023 | Wallet of Satoshi posts a notice on X addressed to its community in the United States of America, saying it has made "the difficult decision to remove"; the rest of the post is cut off in the captured record. |
| 2 July 2025 | Wallet of Satoshi announces self-custody powered by Spark, in private beta, and says it unlocks a path to serve U.S. users again with a fully self-custodial experience. |
| 25 February 2026 | Disclosure document updated with the two custody models, Spark-based self-custody and current fees. |
| 1 August 2026 | Support guide (last modified 1 August 2026) introduces the self-custody version next to the previously fully custodial "Classic" wallet. |

## Risks and caveats

- Custodial mode means WoS holds the keys; balances and single transactions are capped at 5 BTC.
- In self-custody mode, losing the recovery phrase can mean permanent loss; support cannot recover keys or funds.
- Custodial service is limited to certain regions and may change with regulation.

## About the developer

- **Legal entity**: Wallet of Satoshi Pty Ltd, ACN 630 329 690 (Australia).
- **Headquarters**: Terms governed by the laws of Queensland, Australia, with arbitration in Brisbane.

## Official links

- Website: [www.walletofsatoshi.com](https://www.walletofsatoshi.com/)
- Support: [support.walletofsatoshi.com](https://support.walletofsatoshi.com/)
- Docs: [www.walletofsatoshi.com/disclosure](https://www.walletofsatoshi.com/disclosure)

## Questions and answers

**Is Wallet of Satoshi custodial?**

It depends on the region: custodial mode, where WoS holds the keys, is offered only in some regions; a self-custody mode built on Spark by Lightspark is available everywhere.

**Does Wallet of Satoshi hold my Bitcoin?**

In custodial mode, yes, with a 5 BTC balance cap. In self-custody mode the user holds the keys and WoS cannot recover them.

**What fees does Wallet of Satoshi charge?**

As of the 25 February 2026 disclosure: 1.95% on Bitcoin top-ups and on on-chain sends, plus network fees; no WoS fee on incoming Lightning payments.

**Who makes Wallet of Satoshi?**

Wallet of Satoshi Pty Ltd (ACN 630 329 690), an Australian company whose terms are governed by Queensland law.

## Sources

- [Wallet of Satoshi — Home (Wayback 15 August 2026)](https://web.archive.org/web/20260815183442/https://www.walletofsatoshi.com/)
- [Wallet of Satoshi — Disclosure (Wayback 29 April 2026)](https://web.archive.org/web/20260429024620/https://www.walletofsatoshi.com/disclosure)
- [Wallet of Satoshi Support — What is self-custody](https://support.walletofsatoshi.com/en/support/solutions/articles/36000578784-what-is-self-custody-and-how-is-it-different-from-classic-wallet-of-satoshi-)
- [Wallet of Satoshi Support — Which countries is WoS available in](https://support.walletofsatoshi.com/en/support/solutions/articles/36000493699-which-countries-is-wallet-of-satoshi-available-in-)

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Page updated: 2026-10-31

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Source: https://revain.org/wallets/wallet-of-satoshi/