Lock Android Apps
with Your YubiKey
Yubi AppGate protects your sensitive apps behind YubiKey HMAC-SHA1 challenge-response authentication. No passwords, no cloud accounts. Just tap or plug in your hardware key.
Yubi AppGate is under active development. Expected release: Q2 2026.
Yubi AppGate protects your sensitive apps behind YubiKey HMAC-SHA1 challenge-response authentication. No passwords, no cloud accounts. Just tap or plug in your hardware key.
Why Yubi AppGate
Replace PINs and patterns with real cryptographic authentication backed by a physical key you control.
Uses HMAC-SHA1 challenge-response with your YubiKey. Authentication happens on the hardware key itself, so secrets never leave the device.
Tap your YubiKey over NFC or connect via USB-C. Both transport methods are fully supported with automatic detection.
Once enabled, protected apps require YubiKey authentication no matter how they're launched, whether from the home screen, recent apps, or other apps.
Everything stays on your device. No accounts to create, no data uploaded, no internet connection needed for authentication.
The challenge-response handshake completes in under a second. Tap and go. No typing, no waiting.
Optional device administrator mode prevents the app from being silently uninstalled by someone with physical access to your phone.
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