Security & Privacy · Open source
Conceal Authenticator
acktarius (Conceal Network Developer)
Secure 2FA authenticator with blockchain backup and encryption.
Opens the official F-Droid page
About Conceal Authenticator
Conceal Authenticator - The First Decentralized 2FA App
🔐 SECURE 2FA AUTHENTICATOR
Generate TOTP codes for all your accounts with military-grade encryption and biometric security.
• HMAC-SHA1 (standard)
• HMAC-SHA256
• HMAC-SHA512
• Period: 30 or 60 seconds
• Digits: 6, 7, or 8
🚀 WORLD'S FIRST DECENTRALIZED 2FA BACKUP
• Permissionless - No registration or approval needed
• Automatic - Your keys are backed up to the blockchain automatically
• Decentralized - No single point of failure, no central server
Nobody has done this before. This is what decentralization is meant for.
✨ FLEXIBLE OPTIONS
• Local-only mode - Use as a standard 2FA app
• Manual backup - Export when needed
• Automatic blockchain backup - Your keys saved securely on-chain
📦 BUILT-IN WALLET
Seamless blockchain integration. Recover your 2FA keys with your wallet seed - no third-party servers.
🛡️ PRIVACY & SECURITY
• Self-custody - You own your keys
• Biometric security - Fingerprint and face recognition
• No central authority - Direct blockchain interaction
• Offline capable - Works without internet
👥 SHARE WITH TRUSTED CONTACTS
What's new in 1.1.4
- add feature : import/export encrypted wallet backup file - uniformize dialog and harmonize with theme colour - add search filter per issuer. - update dependencies
How to install Conceal Authenticator
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Conceal Authenticator from your app drawer.




