2FA Authenticator (2FAS)

3.9
31.8K reviews
5M+
Downloads
Content rating
USK: All ages
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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
26 Aug 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

4.0
31K reviews
Josh
27 September 2025
Best authenticator app I've ever used and will stick with. The devs are great at the work they do, providing this at no cost to users (donations are accepted which they deserve) and hope they will continue to. Very happy with the app, simple, straight forward and secures your numerous logins that hackers would otherwise love to compromise. Thank you devs, keep up the great work! šŸ‘
1 person found this review helpful
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2FAS
27 September 2025
Thank you for choosing us! We'll make sure to keep up the good work 🫔
Ryan Travis
14 September 2025
One of the best authenticator apps I have used with a very nice user friendly ui and cloud backup linked to Google Drive in a hidden folder encrypted with whatever password you set so if you loose access to your phone you can still get in to your accounts!
6 people found this review helpful
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2FAS
15 September 2025
Thank you for the review Ryan! We appreciate it greatly 😊
Sreehari Shajimon
14 September 2025
Simple, and Affective. Best choice for anyone who doesn't want to deal with the extras. it's a 2 factor application, and it does that job, perfectly. a master n one.
3 people found this review helpful
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2FAS
20 April 2023
Yup. Thanks for the review! 😊

What's new

- Fix Chinese translations
- Fix QR code sharing support for UTF-8 characters
- Fix white characters removal when parsing a service