Blockstream app: keys, security, fees and reviews
Software wallet
In short
- Key control
- Self-custodial: the app generates the private keys and stores them on the user's device.
- Risks and caveats
- If the device is lost or broken and the recovery phrase was not backed up, the funds cannot be accessed.
- Checked
- 28 October 2026
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Key facts
- Wallet type
- Software wallet
- Who holds the keys
- the user (self-custody)
- Developer
- Blockstream Corporation
- Platforms
- iOS, Android, desktop
- Open source
- yes
- Official site
- blockstream.com/app
Key facts checked on 28 October 2026 against official sources.
Status
Renamed: GreenAddress became Blockstream Green in March 2019, and Blockstream Green became the Blockstream app in May 2025.
What is Blockstream app
The Blockstream app (formerly Blockstream Green, and before that GreenAddress) is a self-custodial Bitcoin wallet made by Blockstream. It covers on-chain bitcoin, Lightning and Liquid assets, runs on mobile and desktop, and can work with the Blockstream Jade hardware wallet.
Who holds the keys
| Parameter | Details |
|---|---|
| Key control | Self-custodial: the app generates the private keys and stores them on the user's device. |
| Recovery | Funds can only be recovered with the backed-up recovery phrase if the device is lost or broken. |
| Account model | Optional 2FA multisig accounts: one key on the device, a second held by Blockstream and released only after a two-factor code. |
| Spending without Blockstream | In 2-of-2 accounts the device key alone can spend after a timelock (about a year on Bitcoin, about 45 days on Liquid); 2-of-3 accounts add a user-held backup key. |
Features and supported networks
| Parameter | Details |
|---|---|
| Platforms | iOS, Android (Google Play and F-Droid), macOS, Windows and Linux. |
| Supported networks | On-chain bitcoin, Lightning and Liquid assets in one view. |
| Liquid assets | Through the Liquid Network the app supports tokenized assets such as L-BTC and USDT, with Confidential Transactions. |
| Buy / sell | Bitcoin can be bought in the app through integrated exchange partners. |
| Hardware wallet support | Works with the Blockstream Jade hardware wallet. |
| Multisig | 2-of-2 (2FA Protected) and 2-of-3 multisig accounts; 2FA by authenticator app, SMS, email or phone call. |
Security and audits
- The app is open source; Blockstream describes it as 100% open-source software.
- The Android app's source code is published on GitHub under the GPL-3.0 licence.
- A 2FA multisig account needs both the device key and Blockstream's key to send, so a stolen phone or leaked recovery phrase alone cannot move those funds.
- An open-source recovery tool lets users of multisig accounts move coins without Blockstream's servers.
History
| Date | Event |
|---|---|
| 27 July 2016 | Blockstream announced it had acquired the GreenAddress wallet. |
| 19 March 2019 | A rebuilt GreenAddress mobile wallet was released as Blockstream Green for Android and iOS. |
| 19 March 2019 | Blockstream said it would gradually retire the older Greenbits and GreenAddress wallets. |
| 29 May 2025 | Blockstream introduced the Blockstream app, built on the foundation of Blockstream Green. |
Risks and caveats
- If the device is lost or broken and the recovery phrase was not backed up, the funds cannot be accessed.
- In 2FA Protected (2-of-2) accounts, spending needs Blockstream's server key until each deposit's timelock expires (about a year on Bitcoin by default).
About the developer
- Developer
- Blockstream
- Founders
- GreenAddress was created by Lawrence Nahum, who joined Blockstream with the acquisition.
Official links
- Website: blockstream.com/app
- Docs: help.blockstream.com/blockstream-app/set-up-transact-recover-your-wallet/set-up-a-new-wallet
- Source code: github.com/Blockstream/green_android
- Blog: blog.blockstream.com/introducing-the-blockstream-app-the-bitcoin-wallet-that-grows-with-you-2
Questions and answers
Is the Blockstream app self-custodial?
Yes. The app generates private keys and stores them on the user's device; in optional 2FA multisig accounts Blockstream holds a second key, but cannot spend on its own.
Is the Blockstream app the same as Blockstream Green or GreenAddress?
Yes. Blockstream acquired GreenAddress in 2016, rebranded it Blockstream Green in 2019 and introduced it as the Blockstream app in May 2025.
Is the Blockstream app open source?
Yes. Blockstream describes it as 100% open-source software, and the Android app is published on GitHub under GPL-3.0.
Which networks does the Blockstream app support?
On-chain bitcoin, Lightning and the Liquid Network, including Liquid assets such as L-BTC and USDT.
Who makes the Blockstream app?
Blockstream; the original GreenAddress wallet was created by Lawrence Nahum.
Sources
- blockstream.com
- github.com
- apps.apple.com
- Blockstream — Bitcoin Multisig Wallet Secured with 2FA
- Blockstream Help Center — Set up a new wallet
- Blockstream — Blockstream Acquires Bitcoin Wallet Software Provider GreenAddress
- Blockstream Blog — The All-New Blockstream Green Wallet
- Blockstream Blog — Introducing the Blockstream App
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