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Clench Wallet

Secure non-custodial Bitcoin wallet with multisig support
New in version 0.3.26
Security hardening release:

- Uses explicit Android OS entropy for new seeds and rejects weak external-signer signature policies.
- Strengthens authentication, secure screens, lifecycle cleanup, Electrum TLS/Tor, backups, and hostile NFC/QR/file handling.
- Strengthens TAPSIGNER setup proof binding; direct TAPSIGNER payment signing remains unavailable.
- Keeps hardware-wallet transport to QR, intentional NFC taps, or user-selected files—never USB or Bluetooth data connections.
- Adds two-gate r
Clench is a Bitcoin-only, non-custodial Bitcoin wallet for Android. It uses Bitcoin Dev Kit and stores wallet data locally on the device.

Wallet features:
- Create single-sig and multisig wallets.
- Import watch-only wallets from descriptors.
- Create or restore BIP-39 seed phrase wallets with an optional passphrase.
- Use native SegWit, nested SegWit, legacy, and Taproot script types.
- Connect to Electrum servers, including personal servers and Tor SOCKS5 routes.
- Use coin control, UTXO freezing, labels, batch payments, RBF fee bumping, CPFP, cancel replacement attempts, raw transaction import, and sweep flows.
- Run node diagnostics for Electrum route, Tor mode, TLS pinning, server version, and tip height.

Hardware-wallet features:
- Exchange PSBTs by animated QR, BBQr, an intentional NFC tap, microSD/user-selected file import, or signed-return import where supported.
- Clench does not communicate with signing devices over USB or Bluetooth. A signer may still use USB for power.
- Work with QR-based signers such as SeedSigner, Keystone, Foundation Passport, and Blockstream Jade.
- Work with Coldcard Q, Coldcard Mk4, and Coldcard Mk5 transfer paths.
- Check Tapsigner NFC Tap Protocol status.
- Sweep SATSCARD active slots with certificate verification and explicit CVC-authenticated unseal confirmation.
- TAPSIGNER setup, verification, xpub import, multisig policy import, and encrypted backup are available; direct payment signing is a temporary software limitation.
- Require explicit broadcast confirmation after hardware-wallet signing.

Security and privacy features:
- Encrypt keys with Android Keystore.
- Encrypt the local wallet database with SQLCipher.
- Protect wallet access with PIN and biometric authentication where available.
- Validate signed PSBTs and finalized transactions before broadcast.
- Avoid analytics, advertising SDKs, Firebase, Google Play Services, crash reporting services, and account sign-in.

Network use is limited to wallet sync and optional user-triggered fee or price data lookups.

Clench is free software under the MIT License.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 0.3.26 (326) suggested Added on Aug 10, 2026

    arm64-v8a armeabi-v7a x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • hide other apps overlays
      This app can request that the system hides overlays originating from apps from being shown on top of it.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • net.clench.wallet.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 34 MiB PGP Signature | Build Log

    • New in version 0.3.23
    Removes unused Bluetooth permissions and stale USB/Bluetooth/Virtual Disk signer claims. Clench now enforces QR, intentional NFC tap, and user-selected file/removable-card transports, and verifies the chain code used when setting up TAPSIGNER.
  • Version 0.3.23 (323) - Added on Jul 31, 2026

    arm64-v8a armeabi-v7a x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • net.clench.wallet.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 34 MiB PGP Signature | Build Log

    • New in version 0.3.21
    Fixes Clench phone-signer multisig wallet creation and unavailable-authentication signing dead ends. Multisig PSBT reviews now show an estimated final signed size and fee rate. Improves Bitcoin wallet search metadata for F-Droid.
  • Version 0.3.21 (321) - Added on Jul 14, 2026

    arm64-v8a armeabi-v7a x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • connect to paired Bluetooth devices
      Allows the app to connect to paired Bluetooth devices
    • discover and pair nearby Bluetooth devices
      Allows the app to discover and pair nearby Bluetooth devices
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • net.clench.wallet.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 34 MiB PGP Signature | Build Log

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