ZChat 2.12.4, the version offered here, cannot send ZEC or on-chain messages. Zcash upgraded its network on 28 July 2026 and 2.12.4 does not know the new rules. It also may not show some ZEC sent to it. A fixed version, 2.13.0, is being tested. It is not published yet. Target: by 1 November 2026. If you already use ZChat: write down your recovery phrase and do not uninstall the app. Your funds stay on the blockchain and can be spent again after you update.
ZChat 2.12.4, la versión que se ofrece aquí, no puede enviar ZEC ni mensajes en la blockchain. Zcash actualizó su red el 28 de julio de 2026 y la 2.12.4 no conoce las reglas nuevas. También puede no mostrar parte del ZEC que recibe. La versión corregida, la 2.13.0, está en pruebas. Aún no está publicada. Objetivo: antes del 1 de noviembre de 2026. Si ya usas ZChat: anota tu frase de recuperación y no desinstales la app. Tus fondos siguen en la blockchain y podrás gastarlos de nuevo cuando actualices.
Download ZChat
No phone number and no account — your Zcash address is the identity. Every message is end-to-end encrypted, and you pick per conversation whether it rides as a memo inside a Zcash shielded transaction or travels free over NOSTR: three transport modes. Android only. No email, no account, no waitlist — download the signed APK and verify it yourself.
Platform Availability
ZChat is Android only. It is not on Google Play, the App Store, F-Droid, Samsung or the Solana dApp Store, and nothing has been submitted to any of them — store distribution is scheduled after a third-party security audit and its remediation. There is no iOS build and no iOS source, and no desktop or web client.
Android (signed APK)
Available — direct download
F-Droid, Google Play & other stores
Not submitted — after the audit
iOS
Not started — no code, no date
Desktop & web
No client — none in development
Android APK Download
Direct download of the latest signed release — v2.12.4, published 12 July 2026. No email, account, or waitlist required; the email gate was removed on 9 July 2026. The file is roughly 100 MB, most of it the bundled Zcash proving parameters. Experimental software with no third-party audit yet.
This version cannot send on-chain since 28 July 2026. Read the notice above before you install.
Esta versión no puede enviar en la blockchain desde el 28 de julio de 2026. Lee el aviso de arriba antes de instalar.
Get told when a new build ships
We do not run a mailing list and we would rather not hold your email address. Watch the Android repository on GitHub (Watch → Custom → Releases), or point a reader at the releases feed:
https://github.com/decentrathai/zchat-android/releases.atomVerification
APK Checksum (SHA-256)
Each release publishes a per-build SHA-256 checksum alongside the APK. Compare it against your download on the GitHub release page.
Signing Key
Every APK is signed with ZChat's dedicated release key — never re-signed by a store, because we do not distribute through one. The certificate fingerprint is permanent and unchanged across every release:
F1:7A:F1:28:23:CA:20:8B:63:2E:29:81:38:B7:89:13:74:F6:65:17:C8:9D:BF:BE:12:FC:3A:C3:65:01:C8:06Verify it yourself:
apksigner verify --print-certs -v ZChat.apkDo not take the fingerprint from this page alone. The same value is printed in every one of our GitHub release notes and in our July 2026 Zcash forum update, so you can check it against a source we do not control. A build that prints anything else is not ours. The client is MIT licensed with no closed component, so you can also build it from source and compare — see docs/Setup.md in the Android repository.
Release Notes
- ~ Fixed a crash on launch while the chat screen loaded
- ~ Fixed a crash when opening Restore Wallet after scanning a wallet-backup QR
- ~ Hardened six more fields of the same class, three of them in the Tunnel handshake path
Public source is already at 2.13.0; that release has not been cut yet. Full notes and per-release checksums are on GitHub.
ZChat is open source under the MIT License — both repositories, with no closed component.
The Android client is a fork of Zashi, the Zcash wallet published by Electric Coin Company under the MIT License; that upstream has since been renamed and now lives at zodl-inc/zodl-android.