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2FA Authenticator (2FAS)

2FA Authenticator (2FAS)

#1 Rated 2FA Authenticator

35K ratings
697 reviews
💼 Business
📊 Productivity
Free

Details

  • Released
  • Updated

Features

Developer

Two Factor Authentication Service Inc.
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2FA Authenticator (2FAS) screenshot #1 for iPhone
2FA Authenticator (2FAS) screenshot #2 for iPhone
2FA Authenticator (2FAS) screenshot #3 for iPhone
2FA Authenticator (2FAS) screenshot #4 for iPhone
2FA Authenticator (2FAS) screenshot #5 for iPhone
2FA Authenticator (2FAS) screenshot #6 for iPhone
iphone
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Reviews summary↘︎
⭐697
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📝40+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 3 weeks
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About

Securely log in to your online accounts with two-factor authentication. This app protects your personal data and passwords from cyber threats with a simple, private, and open-source solution. It offers easy token restoration, app protection, and offline functionality.

✓Two-factor authentication
✓Token backup and restore
✓App protection with passcode/biometrics
✓Open-source and transparent
✓Offline functionality
✓Cross-device sync
✓One-tap authentication with browser extensions
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What users say

Summarized from real user reviews of 2FA Authenticator (2FAS). Based on 35K reviews and a 4.7/5 average, it highlights the 5 positives and 5 negatives reviewers mention most about this Productivity app.

Positive things

  • 🚀Efficient and fast
  • 🔒Secure and private
  • 👍Simple and intuitive UI
  • 💡Customizable icons and folders
  • 🔒iCloud backup and sync

Negative things

  • 🐛Occasional bugs and crashes
  • 🔒Lack of password/PIN protection
  • 🕰No Apple Watch app
  • 🐛Issues with push notifications
  • 🕰Missing desktop/web app
See all reviews

What's New in 2FA Authenticator (2FAS)

5.4.4

April 26, 2026

Updated translations, services.

User reviews

Most RecentHighest RatedLowest Rated

Works like. Charm!

I’ve never had an issue, work great.
DianahlynnDianahlynn

Just remember to back up to iCloud!!!

This is your only path to recovery… so turn it on


Otherwise this rocks!
FanrocketFanrocket

Great but a question.

So far I have no issues, works as intended. I just had a question that is it possible for this app to loose all my auths or for the app to shut down, is this a possibility or do I not have to worry about loosing anything?
wildaanahmedwildaanahmed

2FA Authenticator (2FAS)

I love this app it transfer all my data from google Authenticator at easy
Wilder420Wilder420

Nice app but…

The prompt to review when I open it to get a code is an infuriating thing.

Also, having to join a discord server just to suggest that maybe there should be an icon for a particular service or website?! Bah!
Rockin' KatRockin' Kat
See 692 more reviews

Developer apps

Password Manager (2FAS Pass)
Password Manager (2FAS Pass)

Private, Secure, Local-first.

📊 Productivity

(22)

Free
In-App Purchases
See developer apps

User experience

🐞

Reported Bugs

3 issues

Tokens disappearing after device changes

Bug

Push notification failures

Bug

Incompatibility with older devices

Bug
✨

Requested Features

5 requests

Alphanumeric passcode option

Feature

Custom icon uploads

Feature

Apple Watch app

Feature

Desktop/web app

Feature

Improved support and communication

Feature

FAQ

What does this app do?

This app enables two-factor authentication (2FA) or multi-factor authentication (MFA) for your online accounts. It helps verify your identity and securely log in, protecting your personal data and passwords from cyber threats.

How does the app protect my accounts?

It uses TOTP and HOTP algorithms to generate time-based or counter-based one-time passwords. You can also enable app protection with a passcode or biometrics, and easily restore your authentication tokens with backups.

Is this app free to use?

Yes, the app is 100% free to use. It does not require an account, does not store any passwords or metadata, and works offline, ensuring maximum privacy and anonymity.

What devices is this app compatible with?

The app syncs across your mobile devices, suggesting compatibility with both Android and iOS platforms. It also offers browser extensions for one-tap authentication.

What are the main benefits of using this authenticator app?

Key benefits include enhanced security for your online accounts, easy token restoration, app protection via biometrics, offline functionality for privacy, and a simple, transparent, open-source interface.