# 2FA Authenticator (2FAS)

> Simple, safe and open source 2FA Authenticator app!

Canonical page: [https://chrome-stats.com/d/com.twofasapp](https://chrome-stats.com/d/com.twofasapp)

## Overview

- **ID:** `com.twofasapp`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** 2FAS
- **Category:** TOOLS
- **Downloads:** 5,950,602
- **Rating:** 4.28 / 5 (32,475 ratings)
- **Version:** 5.5.3
- **Last updated:** 2026-08-29
- **First published:** 2017-08-03
- **Publisher country:** US
- **Size:** 43 MB
- **Data as of:** 2026-09-14
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.twofasapp)
- **Website:** [https://2fas.com](https://2fas.com/)
- **Privacy policy:** [https://2fas.com/privacy-policy](https://2fas.com/privacy-policy)

## Description

2FAS is the easiest, 100% free, open-source two-factor authentication app. It secures your accounts with TOTP/HOTP, stores no passwords or metadata, works offline, and offers token backups plus passcode or biometric protection. Built with privacy in mind, it provides anonymous use and transparent, community-driven development.

It supports cross-device token sync, one-tap authentication with the 2FAS browser extensions, multilingual support, and upcoming quick setup guides. The project is open source, freely available on GitHub, and centered on security and user privacy.

## Rankings

- #21,231 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.USE_BIOMETRIC`
- `android.permission.USE_FINGERPRINT`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.twofasapp.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users praise 2FAS for strong security/privacy, simple usage, and useful backup options (cloud backup, Drive syncing, importing codes). However, multiple reviews note reliability problems: codes/backups sometimes disappear or fail, causing lockouts or access issues, with some reports of authentication failures. Overall, the app is seen as secure and easy to use, but reliability concerns temper enthusiasm and suggest planning for potential data/access problems.

### Pros

- Strong security and privacy (offline OTP generation and no data collection)
- Easy to use with a clean, ad-free UI
- Cloud backup and cross-device syncing (Google Drive) and ability to import codes from other apps
- Ad-free and free to use
- Highly regarded as among the best 2FA apps

### Cons

- Reliability issues with codes/backups causing access problems (codes disappearing, backups failing, potential lockouts)
- Occasional authentication failures leading to inability to access accounts (failed to authenticate)

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- [MFA Authenticator](https://chrome-stats.com/d/in.code4flutter.authenticator) — 5,606 users, 3.88 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.twofasapp)