Bither: keys, security, fees and reviews
Software wallet
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Key facts
- Wallet type
- Software wallet
- Developer
- BITHER Limited
- Platforms
- iOS, Android, desktop
- Open source
- yes
- Official site
- bither.net
Checked on 2026-10-27 against the official site, docs and app-store pages.
What is Bither
Bither is an open-source Bitcoin wallet for iOS and Android, developed since 2014. A phone can run it in Hot mode (online SPV wallet) or Cold mode (offline signer); the two communicate by QR codes so the private keys of a Cold wallet never go online.
Who holds the keys
| Parameter | Details |
|---|---|
| Key control | Self-custody: keys are held by the user on the phone; in Cold mode they stay on an offline device. |
| Account model | Hot (online) and Cold (offline) wallets linked by QR codes; SPV Bitcoin client with no account or server-held keys. |
Features and supported networks
| Parameter | Details |
|---|---|
| Platforms | iOS (App Store) and Android (APK from bither.net); no Google Play version since 27 May 2025; desktop client discontinued in 2020 |
| Supported networks | Bitcoin |
| Connectivity | SPV peer-to-peer Bitcoin client |
| Privacy (CoinJoin, Tor) | Built-in private password keyboard so third-party keyboards never see the password (Android) |
Security and audits
- Open source: the Android and iOS apps are published on GitHub under the Apache License 2.0.
- The Android APK is distributed from bither.net with SHA256 checksums.
History
| Date | Event |
|---|---|
| May 2014 | The bither-android source repository was created on GitHub. |
| July 2014 | The bither-ios source repository was created on GitHub. |
| 29 April 2020 | The desktop client stopped being maintained and was withdrawn from download. |
| 27 May 2025 | Bither stopped offering its Android app on Google Play; the APK is distributed from bither.net. |
| 26 January 2026 | Android version 2.2.0.220 released. |
Risks and caveats
- Any app named Bither on Google Play is a fake-wallet risk; the vendor distributes the Android app only as an APK from its website.
- The desktop client is no longer maintained.
- Supports Bitcoin only.
About the developer
- Developer
- Bither team (support@bither.net); no company is named
Official links
- Website: bither.net
- Download: bither.net/android/index.html
- Source code: github.com/bither
Questions and answers
Is Bither self-custodial?
Yes. Keys stay on the user's phone, and in Cold mode on an offline phone that signs transactions via QR codes.
Is Bither open source?
Yes. The Android and iOS apps are on GitHub under the Apache License 2.0.
Which coins does Bither support?
Bitcoin only.
Where can I download Bither for Android?
Only as an APK from bither.net; Bither left Google Play on 27 May 2025, and apps there using its name are a fake-wallet risk.
Sources
- bither.net
- apps.apple.com
- github.com
- Bither — Android APK
- Bither GitHub — bither-android README
- Bither GitHub — bither-ios README
- Bither GitHub — bither-android LICENSE
- GitHub API — bither/bither-android
- GitHub API — bither/bither-ios
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