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Authenticator

Authenticator

Simple 2-factor authentication

407 ratings
292 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↘︎
⭐292
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

If you get a new iPhone you are done…

Sorry but for me it’s not very nice to disable the possibility to back up my tokens in the apple cloud. Who the hell does backups and everything via iTunes this day? I don’t want to set up a new 1tb iPhone via iTunes! Perhaps this made sense in times of 64gb iPhones! But not now anymore! I will quit using this app and switch to something useful. What if I have two iPhones and two tablets? I just want to have it synced automatically and that’s it. I don’t wanna make 20 times 4 keys…
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JayJoe72358JayJoe72358

Open source, gratuit, sans pub, sur iOS

Parfait
Baptiste.r1807Baptiste.r1807

Doesnt work anymore

As at 2026 it is not operational. Didntbwork but i used another app and it was fine.
Gaijing91Gaijing91

How to export?

This is a great app that does nothing at all except display 2fa codes. All apps try to do everything. It is refreshing to see an app that does as little as possible.

A side effect of this is that it is not clear how to export the codes. Can the developer reply to this or email me and let me know?

I can handle complicated solutions like decrypting and dissecting a full phone backup if this is the only way. (but plz lmk where to get what)
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com.apple.AppStorecom.apple.AppStore

Great, but with one improvement please!

If multiple Government Gateway IDs are created using the same email address and personal name, the Authenticator app displays all associated codes under that single name. This makes it difficult to identify which code corresponds to which company.

It would be very helpful to include an option to edit the display name or add an alias, allowing users to distinguish between accounts and select the correct code with ease.

Thank you for considering this improvement.
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Paul2087Paul2087
See 287 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.