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Authenticator

Authenticator

Simple 2-factor authentication

407 ratings
139 reviews
🔧 Utilities
Free

Details

  • Released
  • Updated
  • December 3, 2013
  • June 1, 2019

Features

Developer

Matt Rubin
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Authenticator screenshot #1 for iPhone
Authenticator screenshot #2 for iPhone
Authenticator screenshot #3 for iPhone
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Reviews summary↘︎
⭐139
Reviews↘︎
📝19+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
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About

This app provides a secure and straightforward way to protect your online accounts. It generates one-time passwords that, when combined with your regular password, significantly enhance your account security. The app operates offline, ensuring your sensitive data remains on your device.

✓Generates one-time passwords
✓QR code setup
✓Encrypted data storage
✓Time-based and counter-based OTP support
✓Offline operation
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What users say

Summarized from real user reviews of Authenticator. Based on 407 reviews and a 3.7/5 average, it highlights the 4 positives and 4 negatives reviewers mention most about this Utilities app.

Positive things

  • 🚀Simple and easy to use
  • 🔒Secure, no cloud backup
  • 👍Clean and intuitive UI
  • 💡Open-source and transparent

Negative things

  • 🐛Tokens easily deleted by accident
  • 🔒No backup/transfer options for tokens
  • 🔒Locked out when changing devices
  • 🐛Codes not working after app updates
See all reviews

What's New in Authenticator

2.1.2

June 1, 2019

This update fixes a crash that could occur when trying to manually enter a token on a 32-bit device (iPhone 5 or earlier).

User reviews

Most RecentHighest RatedLowest Rated

Doesn’t work at all on IOS 26

Been using this app for 2FA for years. Upgraded my phone to IOS 26 due to security updates no longer being available for IOS 18 and it turns out this app no longer works on IOS 26. It just shows a blank screen. I lost all my tokens which sucks.
NmuUhHHEWWNmuUhHHEWW

No easy way to port to a new phone

There’s no easy way to transfer the app contents to a new phone, even if you have them side by side. It wants me to do a full backup and restore from iTunes. Impractical.
AguywhoboughtitAguywhoboughtit

Authenticator

I lost my old phone and I’m trying to login my old account(iCloud )
on new phone and there’s no option to do that
Favv75457)5433Favv75457)5433

Does the job well

I don’t understand the 1-star reviews. The codes never failed me, and I’ve upgraded my phone with this app and had no issues in transferring… twice. Plus, the developer’s site says no data is collected. (privacy win!) Would like to see a biometric lock (face id/fingerprint) or password/PIN to open the app.
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Jesus can save anyone!Jesus can save anyone!

Export

Cant export to new phone
ivahidofficialivahidofficial
See 134 more reviews

User experience

🐞

Reported Bugs

3 issues

Blank screen on iOS 26 upgrade

Bug

Codes not working on new devices

Bug

Unable to log in to accounts after token loss

Bug
✨

Requested Features

4 requests

Add biometric lock (Touch ID/Face ID)

Feature

Ability to export/backup tokens

Feature

Companion Apple Watch app

Feature

Folder/tag organization for accounts

Feature

FAQ

What does this app do?

This app is a free and open-source tool for two-factor authentication. It generates unique, time-sensitive one-time passwords (OTPs) that you use in addition to your regular passwords to log into supported online accounts, significantly increasing their security.

How does it enhance account security?

By requiring both your existing password and a one-time password generated by the app, it creates a much stronger barrier against unauthorized access. Even if someone obtains your regular password, they would still need the current OTP to log in.

Is this app free to use?

Yes, this application is completely free to use. It is also open source, meaning its code is publicly available for review and modification.

What devices is this app compatible with?

The provided description specifically mentions compatibility with iOS devices. It fully supports both time-based (TOTP) and counter-based (HOTP) one-time passwords as standardized in RFC 4226 and 6238.

How do I set up an account with this authenticator?

Setup is designed to be simple. You can add accounts by scanning a QR code provided by the service you wish to secure, by entering an "otpauth://" URL, or by manually inputting the necessary details.