2FA Authenticator (2FAS)

4.4
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

4.4
30.6K reviews
Saugata Deb
May 2, 2025
2FAS Authenticator is a reliable and user-friendly app for two-factor authentication. It’s open source, which means greater security and transparency—no hidden surprises. The interface is clean, and setting up accounts is quick and easy. I highly recommend it to anyone looking for a trustworthy, ad-free alternative to mainstream authenticators. Peace of mind with open source backing!
1 person found this review helpful
Did you find this helpful?
2FAS
May 2, 2025
Thank you very much for recommending our app 😊
Doralie
February 21, 2025
I guess I can only edit my response and not reply back to you. I apologize because I might have overreacted when I lost my stuff in the Microsoft authenticator app. I remembered I had a pass key to this app. I resolved the display issue—so thank you for your help! I do have another question, though. As I’ve been switching my accounts to this app, I noticed I have a duplicate entry. If I delete one of them, will the other remain unaffected? Thanks in advance!
18 people found this review helpful
Did you find this helpful?
2FAS
February 21, 2025
Make sure that both of them have the same secret key and generate the same code every 30 seconds. If they do, feel free to move one of them to trash. Just in case you'll be able to restore it from there 😉
Ig Saturation
April 22, 2025
I've been an authy user since they were beta, and when they announced the end of desktop support went for a replacement. I never heard of 2FAS but after 6 hours of research and testing, just migrated and sundowned Authy .. worked perfect, and faster than Authy's clunky albeit distributed style. 4 Android devices and 6 desktops. Does all Authy does and more, but nice UI and faster response. Thank you 2FAS. Donation sent.
2 people found this review helpful
Did you find this helpful?
2FAS
April 22, 2025
Thank you very much for the donation and kind words! It means a lot to us and we appreciate it greatly. And of course, welcome to our app! 😊

What’s new

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

App support

About the developer
Two Factor Authentication Service, Inc.
support@2fas.com
1887 Whitney Mesa Dr Pmb 2130 #2130 Henderson, NV 89014-2069 United States
+1 725-240-1146

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