2FA Authenticator (2FAS) v5.5.2

2FAS

About this app

Developer Description

Simple, safe and open source 2FA Authenticator app!

2FAS is the easiest way to enable two-factor authentication (or multi-factor authentication) to verify your identity and securely log in to accounts to keep your personal data and passwords protected from cyber threats — all from one app, 100% free!

The world’s most secure, private, and simple 2FA app.

Secure:
Easily restore your tokens with backups.
Add app protection with your passcode or biometrics.
2FAS is open-source, transparent, and community-driven.

Private:
2FAS syncs across your mobile devices.
An interface designed for simplicity.
One-tap authentication with 2FAS Browser Extensions.
Multi-language support.
Quick guides for setup and support. (COMING SOON)

Simple:
2FAS works offline.
2FAS doesn't store any passwords or metadata.
100% anonymous use, no account required.

It’s not too late to protect your data, so what are you waiting for? Protect your online accounts and services now with TOTP and HOTP algorithms.

Start using the 2FAS authenticator app today!

If you have any questions, talk with us on our Discord server: https://2fas.com/discord

Learn more about 2FAS:

Check our GitHub repository: https://github.com/twofas
Visit our website at: https://2fas.com/
Follow us on Twitter: https://twitter.com/2FAS_com
Subscribe on YouTube: https://www.youtube.com/@2FAS

What's New

- Increase import file size limit
- Upgrade project and target SDK 36
- Improve notifications system
- Update icons
- Update strings

Version Information

Version: 5.5.2
Downloads: 5M+
Updated on: Dec 9, 2025
Released: Aug 3, 2017
Requires: Android 6.0

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2FA Authenticator (2FAS) users say on Google Play

★★★★★

Chris G

clean, easy to use, updated regularly enough. I recommend over other 2fa apps

★★★★

Yoojun Zhou (NotYoojun.!)

Love the grouping and customizable icons! However it would be perfect if: 1. Add a "Backup immediately" option in the Android app 2. Make the browser extension, or a desktop app that works exactly like the Android one (filling OTPs without touching my phone!)

★★★

Barbara Blumsohn

no way on modern Android devices to export the database there are simply no permissions for any allowable folder. this creates a serious vulnerability and potential for data loss. the only parent way to back up data is via Google drive - nothing else is apparently possible. the only other alternative is to copy the secret key to the clipboard for each individual entry which is obviously problematical.

★★

D Powell

I dont know if im slow or just not getting it cause, I did this with my cod account and now im not able to get into unless I have the code from a authenticator app, which was this one and I aint got no codes or no way to even get them it seems. Why I never wanted to do it, knew if my phone broke or something id lose everything.

★