Bitwarden Authenticator — #5 Alternative to Authy
Standalone open-source mobile 2FA app from the makers of Bitwarden
Bitwarden Authenticator provides a dedicated, standalone open-source TOTP generator on iOS and Android with biometric lock, clean search, CSV/JSON export, and optional Bitwarden vault sync.
License: GPL-3.0 · Pricing: Free & Open Source · Compare all Authy alternatives · Official Website