# Authenticator - 2FA Auth App — TOTP OTP Two Factor MFA

> Open-source TOTP two-factor authentication app with multiple setup and export methods. (iPhone/iPad app by 兵 张.)

- Source: https://appshunter.io/ios/app/authenticator-2fa-auth-app/id1511791282 (this page in markdown: same URL + `.md`)
- Developer: [兵 张](https://appshunter.io/developer/1492987808)
- Category: Utilities, Productivity
- Price: $0.99
- Rating: 5.00/5 from 3 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 7 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2020-05-06
- Data updated: 2026-08-15
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/authenticator-2fa-auth-app/id1511791282/reviews.md

## What is Authenticator?

Authenticator is an elegant, open-source two-factor authentication app that supports the Time-based One-Time Password (TOTP) algorithm.

It offers multiple convenient methods to set up your accounts:
• Scan a QR Code.
• Read from a QR Code image.
• Import from a file.
• Manual entry.

The app features an beautiful “Account Details” page that displays each account along with its QR Code. You can view or copy this information at any time.

Authenticator also provides several easy ways to export all your accounts:
• Export key URIs to the clipboard.
• Export key URIs as plain text.
• Export key URIs as a TXT file.
• Export key URIs as QR Code images.

Authenticator always remains offline and never connects to any networks. It does not track any data or collect any personal information. Just works as it should be.

Authenticator is fully open source on GitHub:
https://github.com/bingzheung/authenticator

## Key features

- TOTP algorithm support
- QR code scanning for setup
- Import accounts from files
- Manual account entry
- Export account keys
- Offline functionality
- Open-source

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/authenticator-2fa-auth-app/id1511791282/reviews.md

### 1/5 — Doesn't work

*2023-11-30*

I tried to import QR codes from Photos and from Finder and the app didn't recognise the codes. Then I tried another app where it worked with the exact same QR codes.

### 5/5 — 支持！

*2023-04-16*

支持一下！基本功能都有，非常方便！
建议加一下以下功能：
1. 自定义名称
2. menu bar支持
3. 主密码

支持！

### 5/5 — Excellent App

*2023-02-28*

Clean, beautiful, elegant

### 5/5 — Excellent App

*2023-02-26*

Clean, beautiful, elegant

## Frequently asked questions about Authenticator

### What is Authenticator?

Authenticator is an open-source application that provides two-factor authentication using the Time-based One-Time Password (TOTP) algorithm. It helps secure your online accounts by generating time-sensitive codes.

### How do I set up an account in Authenticator?

You can set up accounts by scanning a QR code, reading from a QR code image, importing from a file, or through manual entry. The app offers a beautiful 'Account Details' page for each entry.

### Can I export my accounts from Authenticator?

Yes, Authenticator provides several easy ways to export your account keys, including as key URIs to the clipboard, plain text, a TXT file, or as QR Code images.

### Does Authenticator connect to the internet?

No, Authenticator always remains offline and never connects to any networks. It does not track any data or collect any personal information, ensuring your privacy.

### What devices does Authenticator support?

Authenticator is available for Mac, iPhone, iPad, and iPod. It is designed to work seamlessly across these Apple devices.

### How much does Authenticator cost?

Authenticator is a paid application priced at $0.99. This one-time purchase grants you access to all its features.

### Is Authenticator open source?

Yes, Authenticator is fully open source and its code is available on GitHub. This transparency allows users to review its security and functionality.

### How often is Authenticator updated?

The latest version of Authenticator is 1.6.0, last updated on September 16, 2025. Updates typically include improvements and new features for enhanced security and usability.

## Version history (last 5 releases)

### 1.6.1 — 2026-05-11

Bug fixes, compatibility enhancements, and performance improvements.

### 1.6.0 — 2025-09-16

Enhanced support for iOS 26

### 1.5.0 — 2025-04-09

Bug fixes, compatibility enhancements and performance improvements.

### 1.4.0 — 2025-04-07

Bug fixes, compatibility enhancements and performance improvements.

### 1.3.0 — 2024-07-21

Bug fixes, compatibility enhancements and performance improvements.

## Apps similar to Authenticator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Two Factor Authenticator App](https://appshunter.io/ios/app/two-factor-authenticator-app/id6661033815) | 4.5 (58) | Free | Utilities |
| [Authenticator ·](https://appshunter.io/ios/app/authenticator/id1602061522) | 4.6 (26,199) | Free | Utilities |
| [Authenticator: Two Factor App](https://appshunter.io/ios/app/authenticator-two-factor-app/id6737652692) | 3.7 (6) | Free | Utilities |
| [Google Authenticator](https://appshunter.io/ios/app/google-authenticator/id388497605) | 4.9 (1,146,379) | Free | Utilities |
| [Authenticator: Mobile 2FA, MFA](https://appshunter.io/ios/app/authenticator-mobile-2fa-mfa/id6450538201) | 4.5 (136) | Free | Utilities |
| [Authenticator・2FA・MFA・OTP](https://appshunter.io/ios/app/authenticator2famfaotp/id6473175732) | 4.6 (80) | Free | Utilities |

## More apps by 兵 张

- [Cantonese Keyboard - Jyutping](https://appshunter.io/ios/app/cantonese-keyboard-jyutping/id1509367629)
- [Symbols - Learn signs meaning](https://appshunter.io/ios/app/symbols-learn-signs-meaning/id1620116706)

All apps by 兵 张: https://appshunter.io/developer/1492987808

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*