2FA Authenticator (2FAS)

4.2
31.4K reviews
1M+
Downloads
Content rating
PEGI 3
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About this 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://discord.gg/q4cP6qh2g5

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
Updated on
Feb 5, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.3
30.6K reviews
Brian Maloney
February 7, 2025
I seriously can't recommend this app enough. Great backup options and browser extensions that are easy to pair with the android app. Encrypted backups and easily shared between devices. Clean gui and simple to use. To top it off it's open source, I've used many other apps before but this ticks all the boxes. Love the fact the code are not kept in the browser and you have to approve them on your phone. And then it autofills for you. Thanks to the developers for creating an amazing product.
21 people found this review helpful
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2FAS
February 8, 2025
You're more than welcome Brian 😁 We're just glad you're enjoying the app!
Chetz B
September 8, 2024
So far, so good. A simple UI, a good sync option, optional dark mode, active search, and hidden tokens. I've tried the backup/sync between my phone and tablet for 1 account and will gradually be migrating everything from Authy, as I've had enough of them killing a good thing. For a 5* rating, I'd love to see tiles as an option as well as the current lists, landscape view to match when my tablet is in landscape mode, and a timer when tokens are hidden.
11 people found this review helpful
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2FAS
September 9, 2024
Thank you for the review and feedback!
Shaun Newman
February 2, 2023
After a reasonable search for an alternative to Lastpass' authenticator, I landed upon 2FA. I was attracted by the ability to back up and do so with a secure password and other features allowing you to organise your codes and secure things with confidence. It's completely free with no ads but there's a chance for you to donate should you be inclined. Huge thanks to the team for an awesome product.
72 people found this review helpful
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2FAS
February 3, 2023
You're more than welcome, and thank you for the review and feedback! 😊

What’s new

- Share service via QR Code
- Enable edgeToEdge
- Swedish language