Proton Authenticator 1.2.0

Free Download Proton Authenticator APK for Android Phones and Tablets. Protect your online accounts with a private, secure two-factor authentication app that works offline and syncs across devices.

Overview of Proton Authenticator APK for Android

It is a two-factor authentication (2FA) app made by Proton, the team behind Proton Mail, Proton VPN, Proton Drive, and Proton Pass. The app generates time-based one-time passwords (TOTP) and stores them securely on your devices. It is open-source and uses end-to-end encryption, so only you can read your codes.

The app operates offline, provides cross-device syncing with strong encryption, and is protected under Swiss data protection laws. You can import codes from other 2FA apps, enable automatic encrypted backups, and protect the app with biometrics or a PIN for quick, safe access.

Features of the App

• Offline code generation: Generates TOTP codes without needing an internet connection, so you can authenticate anywhere.
• End-to-end encrypted sync: Sync your 2FA accounts between devices using encryption that prevents Proton (or anyone else) from reading your secrets.
• Open-source: Source code is publicly available for inspection, increasing transparency and trust.
• Biometric & PIN protection: Lock the app with fingerprint/face recognition or a PIN for extra security and convenience.
• Automatic encrypted backups: Optionally back up your 2FA data in encrypted form so you can restore it if you lose a device.
• Easy import/export: Import codes from other authenticators or export your data securely when needed.
• Ad-free and free to use: No ads and no Proton account required to use the app’s core features.
• Cross-platform apps: Available on mobile and desktop, so you can access your codes from multiple devices.
• Swiss privacy protections: Proton’s services are backed by Switzerland’s strong privacy laws.
• User-friendly interface: Clean, simple design that makes managing multiple 2FA accounts straightforward.

System Requirements

• Android 8.1 (Oreo)

Conclusion

Proton Authenticator is a secure, private, and easy-to-use 2FA app suited for people who value privacy and want reliable offline authentication. Its open-source nature, end-to-end encrypted sync, and Swiss privacy protections make it a strong choice for personal and professional use.

Frequently Asked Questions (FAQs)

Q: Do I need a Proton account to use this app?
A: No. The app is free to use and does not require a Proton account for its core 2FA features.

Q: Can Proton read my 2FA codes when I sync across devices?
A: No. Sync uses end-to-end encryption, so only your devices can decrypt and read your codes.

Q: What happens if I lose my phone?
A: If you enabled encrypted backups or device sync, you can restore your codes on a new device. Without backups, you’ll need to use account recovery options from the services protected by 2FA.

Q: Can I import codes from other authenticator apps?
A: Yes. It supports importing codes from many other 2FA apps, making migration simple.

Q: Is it open-source and auditable?
A: Yes. The app’s source code is publicly available, allowing independent audits and transparency.

Q: Does the app work without internet?
A: Yes. Generating one-time passwords (TOTP) works offline. The Internet is only needed for sync or backup features.

Q: How can I protect the app from unauthorized access?
A: You can enable biometric unlock or set a PIN to secure access to the app and its codes.