📱 Two-Factor Authentication (2FA) client for Android + Wear OS
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Authenticator Pro

A free open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app.

It supports TOTP (Time Based) and HOTP (Counter Based) authenticators using either SHA1, SHA256 or SHA512 hashing algorithms. Mobile-Otp (mOTP), Steam and Yandex are also supported.

Download ⬇️

Get it on Google Play Get it on F-Droid

Authenticator Pro is currently only available on the F-Droid client through the IzzyOnDroid repo. You must first add this repository in the F-Droid client.

Support development ❤️

Buy Me a Coffee

Quick Links 🔗

Request Icons

Frequently Asked Questions

Contribution Guide

Backup File Format

Importing from other apps:

Google Authenticator

Blizzard Authenticator



Features 🪄

⚙️ Compatibility: Authenticator Pro is compatible with most providers and accounts.

💾 Backup / Restore: Backup your authenticators with strong encryption. In case you lose your or change phone, you can always gain access to your accounts. Save to cloud storage or to your device.

🌙 Dark Mode: Authenticator Pro has a beautiful material design inspired look in either light or dark themes.

⏺️ Icons: Find your authenticators easily with recognisable brand logos and icons next to each code.

📂 Categories: Organise your authenticators into categories.

🔒 Offline with few permissions: Authenticator Pro only requires a single permission and does not require Internet access to function.

🎨 Customisation: Set icons and rename. You can also arrange your authenticators in any order you like so you can find them easily.

Wear OS: Quickly view your authenticators directly from your watch. Please note that a connection to your Android device is required.

Screenshots 📱

Screenshot 1 Screenshot 2 Screenshot 3 Screenshot 4 Screenshot 5 Screenshot 6 Screenshot 7 Screenshot 8

Wear OS Companion

Screenshot 1 Screenshot 2 Screenshot 3 Screenshot 4 Screenshot 5

Permissions 🔒

  • Camera permission is required to add accounts through QR codes.


This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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