2FA Authenticator (2FAS)

4.4
32.4K reviews
Content rating
Rated for 3+
5M+
Downloads
Content rating
Rated for 3+
Learn more
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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://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
Updated on
Mar 12, 2026

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
31.5K reviews
Ben Lam
March 7, 2026
Feels much more secure than other apps after testing it out on a few accounts: 1. Does not collect any user data (this should be gold standard since the OTP generating algorithm works even without internet connection) 2. Locks you out of the app once you switch apps, requiring you to log back in using pin / biometrics 3. Ability to hide all other accounts' codes and only reveal the one tapped 4. Allows to import codes from other auth apps and sync with gdrive as backup
28 people found this review helpful
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2FAS
March 7, 2026
Thank you for the positive feedback. We appreciate it greatly!
Luke Plasse
May 6, 2026
Happy with app on phone and PC browser. Very cool PC extension integration with phone app. wish there was a wearos app so I didn't have to unlock my phone to approve code input. This would make it perfect.
4 people found this review helpful
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2FAS
May 6, 2026
I'll forward it to the devs. Thank you for the feedback!
R. Alan Martin
July 2, 2026
Absolutely amazing app. Easy to use and setting up on a second phone using the Google drive backup feature is a breeze. Looking for a terrific authentication app, you're in the right place.
1 person found this review helpful
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2FAS
July 3, 2026
Thank you for the review and recommendation!

What’s new

- Dynamic colors
- Update translations
Content rating
Rated for 3+
Learn more

App support

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

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