Mauth

A Material You Two-factor Authentication app.GPL-3.0-or-later

FreeOTP

Two-factor authenticationApache-2.0

Green: Bitcoin Wallet

Bitcoin - secure and easyGPL-3.0-only

Flauth

Privacy-first, open-source TOTP authenticator for 2FA token management.MIT

KeePassVault

Client app for KeePass databasesApache-2.0

Varengold activeTAN

2FA for online bankingGPL-3.0-or-later

Proton Authenticator

Private, secure, offline 2FA across devices by Proton teamGPL-3.0-or-later

PasswdSafe

Port of PasswordSafe password managerArtistic-2.0

mOTP

One-time password generatorApache-2.0

ANOTHERpass

Another way to manage passwords (password manager and 2FA authenticator)MIT

FreeOTP+

Enhanced fork of FreeOTP-Android providing a feature-rich 2FA authenticatorApache-2.0

SimpleLogin | Anti-spam

Protect your email inbox with a secure and open source solution by SimpleLoginApache-2.0

BluePass

BluePass extracts 2FA tokens from SMS and forwards them via BluetoothMIT

KeePassDX Passkey Vault

Manage Passkey / Password in a local and open-source vaultGPL-3.0-or-later

Ente Photos - Encrypted photo storage

Backup, Organise, Share - Private photo storage with end-to-end encryptionAGPL-3.0-only