Best Authenticator Apps

250+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated October 2026

Microsoft Authenticator is the household name in authenticator, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Authenticator Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (703K)NoNoOct 2026
2Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoOct 2026
3Authenticator AppAuthenticator AppFree4.6★ (49K)NoYesOct 2026
4Authenticator ·Authenticator ·Free4.6★ (26K)NoYesOct 2026
5Duo MobileDuo MobileFree4.9★ (2.3M)NoNoOct 2026
6Authenticator ℠ AppAuthenticator ℠ AppFree4.3★ (5.4K)YesYesOct 2026
7ID.me AuthenticatorID.me AuthenticatorFree4.3★ (100K)NoNoOct 2026
8Authenticator™ AppAuthenticator™ AppFree4.1★ (445)NoYesOct 2026

Top Picks for Authenticator

Microsoft Authenticator#1

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Editor's Choice
📊 Productivity
4.7😞(703K ratings)
Free
#7in Productivity
Microsoft Authenticator screenshot 1
Microsoft Authenticator screenshot 2
Microsoft Authenticator screenshot 3
Microsoft Authenticator screenshot 4
Microsoft Authenticator screenshot 5
Microsoft Authenticator screenshot 6

Securely sign into online accounts with multi-factor authentication, passwordless login, or password autofill. Manage multiple accounts, including non-Microsoft services, and access Microsoft products and services seamlessly.

What We Love

  • 🚀 Seamless authentication
  • 🔒 Secure login process
  • 👍 Convenient passwordless sign-in
  • 🚀 Smooth app performance

Room to Improve

  • 🐛 Broken Apple Watch functionality
  • 🐛 Backup and restore issues
  • 🐛 Confusing login flow
  • 🐛 Accounts disappearing after phone change
4.9😞(1.2M ratings)
Free
#4in Utilities
Google Authenticator screenshot 1
Google Authenticator screenshot 2
Google Authenticator screenshot 3
Google Authenticator screenshot 4
Google Authenticator screenshot 5
Google Authenticator screenshot 6

Enhance your online security with a second verification step for your accounts. Generate codes directly on your phone, even offline, to protect against unauthorized access. Sync codes across devices for easy access and manage multiple accounts securely.

What We Love

  • 👍 User-friendly
  • 🔒 Secure authentication
  • 🚀 Simple and fast
  • 🔒 Reliable security
  • 👍 Easy to use

Room to Improve

  • 🐛 Randomly deleted all codes
  • 🐛 Unreliable, lost access to accounts
  • 🐛 Timing issues, codes didn't work
  • 🐛 Accounts duplicated then deleted
  • 🐛 Wiped all accounts after update
Authenticator App#3

Authenticator App by 2Stable

2FA Authentication MFA & OTP
Worth Considering
📊 Productivity
4.6😊(49K ratings)
FreeIn-App Purchases
#47in Productivity
Authenticator App screenshot 1
Authenticator App screenshot 2
Authenticator App screenshot 3
Authenticator App screenshot 4
Authenticator App screenshot 5
Authenticator App screenshot 6

This app provides secure two-factor authentication codes for your online accounts, enhancing security with encryption and backups. It offers seamless synchronization across Apple devices and quick access via widgets, even when offline.

What We Love

  • 🚀 Works well
  • 🔒 Secure and reliable
  • 👍 Easy to use and set up
  • 💡 Excellent cross-device sync and backup
  • 👍 Convenient desktop app
  • 👍 Responsive and helpful support

Room to Improve

  • 🐛 Compatibility issues with newer devices
  • 💰 Expensive subscription
  • 🔒 Limited free version
  • 👎 Confusing setup and instructions
  • 🐛 Bugs and crashes

More Authenticator apps to explore

FAQ about Authenticator

What are the best authenticator apps for iPhone?
Microsoft Authenticator tops our authenticator apps ranking as of October 2026, with a 4.7-star average from 703K App Store ratings, and it's free to download.
Yes — 20 of the top authenticator apps we rank are free to download, including Microsoft Authenticator and Google Authenticator.
Microsoft Authenticator has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 250+ authenticator apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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