What is Ključar?
Geslar Ključar is a free TOTP/HOTP authenticator for Android and iOS. It generates one-time codes for two-factor authentication (2FA) — an extra layer of protection for your accounts.
Each TOTP key is individually encrypted with AES-256-GCM. Data stays locally on your device.
Installing on Android
- Open the Google Play Store on your device.
- Search for "Geslar Ključar" or "Geslar Authenticator".
- Tap "Install".
- After installation, open the app. Set up a master password or enable biometric unlock.
Installing on iOS
- Open the App Store on your iPhone or iPad.
- Search for "Geslar Ključar" or "Geslar Authenticator".
- Tap "Get" (free).
- After installation, open the app and set up protection (master password or biometrics).
What you get
AES-256-GCM encryption
Each TOTP key is individually encrypted. Even root access to the device won't reveal keys without the master password.
Biometric unlock
Fingerprint or Face ID for quick access to your codes.
Import from 7 authenticators
Google Authenticator (QR), Aegis, 2FAS, Raivo, andOTP, FreeOTP+ and Geslar. Encrypted formats supported.
Unlimited keys
No limits — add as many 2FA codes as you need.
Next step
After installation, add your first TOTP code: Adding TOTP codes →