2FA Authenticator (2FAS) icon
2FA Authenticator (2FAS) icon

2FA Authenticator (2FAS)

 34 likes

2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates Time-based One-time Passwords (TOTP) and PUSH authentication*.

2FA Authenticator (2FAS) screenshot 1
2FA Authenticator (2FAS) screenshot 2
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2FA Authenticator (2FAS) screenshot 3

License model

  • FreeOpen Source

Application type

Platforms

  • Android
  • iPhone
  • Android Tablet
  • iPad
  • Google Chrome
  • Mozilla Firefox
4.6 / 5 Avg rating (10)
34 likes
7comments
0 news articles

Features

Suggest and vote on features

Properties

  1.  Privacy focused
  2.  Lightweight

Features

  1.  Time-based One-time Password
  2.  Dark Mode
  3.  Usability
  4.  Biometric Authentication
  5.  Works Offline
  6.  Encrypted Backup
  7.  Cloud Sync
  8.  Ad-free
  9.  Two-factor Authentication
  10.  Multiple Account support
  11.  End-to-End Encryption
  12.  Browser extension
  13.  Multi-Factor Authentication (MFA)

2FA Authenticator (2FAS) News & Activities

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2FA Authenticator (2FAS) information

AlternativeTo Categories

Security & PrivacyBackup & SyncWeb Browsers

Apple AppStore

  •   Updated Dec 20, 2024
  •   4.74 avg rating
View in AppStore

Our users have written 7 comments and reviews about 2FA Authenticator (2FAS), and it has gotten 34 likes

2FA Authenticator (2FAS) was added to AlternativeTo by Mohamed Ahmed on Mar 6, 2019 and this page was last updated Sep 15, 2024.

Comments and Reviews

   
 Post comment/review
John Doe
  
Top positive commentSep 23, 2023

The browser extension and future plan of desktop app makes it a better FOSS alternative to other TOTP Apps. Only complain is that the exports should be as json but its currently as .2fas file extension. Though they are already working on it.

3
K0RR
  
Top negative commentDec 21, 2023
• Edited May 30, 2024

The only authenticator with a browser extension companion but there is no way to sync/backup tokens to a private cloud (for example Nextclud). They prefer to support Google Drive instead of WebDAV

2 replies
Sam Lander

Most open-source apps upload via Android backup. Since it's client-side encrypted, it wouldn't really matter where it was uploaded, and still offers local backups that can be migrated anywhere.

Reply written Jul 15, 2024

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Sam Lander

I just downloaded and tested it. It allows you to share to anywhere (i.e. saved Telegram or Signal, email, cloud drive), straight from the app.

The only downside I see is that it is .2fas rather than .json which many others use. But they are currently working on it.

Reply written Jul 15, 2024

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0
damino
CommentJan 17, 2025

I Like it because you can backup on local everywhere you want

0
K V
  
Positive commentJul 26, 2024

Useful 2FA app on both desk/laptop and mobile.

0
Sam Lander
  
Positive commentJul 10, 2024
• Edited Jul 15, 2024

A good alternative to other open-source authenticators like Bitwarden authenticate and Aegis.

It allows manual backups to wherever (i.e. Telegram, Signal, email, cloud drive), and auto backups to Google Drive. Even if you don't like Google, it is client-side encrypted so doesn't matter much and can be an additional safety.

The extension seems worthless to me. Nothing but decreasing security. The only real downside I see is that the exports are .2fas, rather than a more standardized Json. But it looks like they are currently working on that issue: https://github.com/2fast-team/2fast/labels/planned%20%F0%9F%93%91

0
Bibek Aryal
  
Positive commentApr 2, 2024

This is the best app of its kind, I loved the UI and the UX. Been using it since its inception. I haven't looked into another MFA app (don't need to). Thank You. 🙏

2
Efi Jovanovic
  
Positive commentAug 2, 2023

Super simple to use with a very handy option to backup your keys to Google Drive. Has biometric authentication as well as a pin lock. Super useful when changing phones since the backups are instantly restored. Also has an option to show you the next key during the last 5 seconds of the current one expiring as well as a browser extension that I personally don't use so I can't guarantee about it. Overall a great authenticator app.

1

What is 2FA Authenticator (2FAS)?

2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates Time-based One-time Passwords (TOTP) and PUSH authentication*. It helps keep your online accounts secure on supporting TOTP websites.

For your convenience, you can either use QR Code or enter your secret key manually.

*PUSH authentication is compatible only with services integrated through 2FAS.com provider.

Notice: Application supports only 6-digit TOTP factor.

Official Links