2FA Authenticator (2FAS)

4.3
31.2K reviews
1M+
Downloads
Content rating
Everyone
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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
30.4K reviews
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!
1 person found this review helpful
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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 😉
Chris G
January 22, 2025
App works as intended (for the most part. I'll get to that). It works well on my phone. I also have the app on my tablet. Issue is, is when I have the tablet in vertical, everything works fine. When in horizontal however, the app freaks out and goes back-and-forth on having the codes in the center of the screen and on the left. Making horizontal useless.
14 people found this review helpful
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2FAS
January 23, 2025
Thank you for the review and feedback. And yes, the app on Android is only compatible with vertical mode right now.
John Behling
November 16, 2024
It's easy to set up, intuitive, and has always worked when I needed it. Also, not swimming in ads, which is a huge plus. I also just replaced my phone, and was worried about getting this set up on my new device. Turns out the tokens were backed up on Google Drive, so as soon as I installed this, BAM! Everything was there, already working. I couldn't be happier!
49 people found this review helpful
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2FAS
June 27, 2023
Happy you like it! Thanks for the review! 😊

What’s new

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