Best Two Factor Authenticator App

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated September 2026

With an average user rating of 4.5★, the two factor authenticator app category is one of the App Store's strongest. Browse all 250+ apps we track, sorted so the most loved ones surface first.

Compare top Two Factor Authenticator App (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoSep 2026
22FA Authenticator (2FAS)2FA Authenticator (2FAS)Free4.7★ (35K)NoNoSep 2026
3Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (703K)NoNoSep 2026
4Two Factor Authenticator & OTPTwo Factor Authenticator & OTPFree4.5★ (133)NoYesSep 2026
5Authenticator App - 2FA TotpAuthenticator App - 2FA TotpFree4.5★ (24)NoYesSep 2026
6Authenticator: Secure 2FA AuthAuthenticator: Secure 2FA AuthFree4.5★ (25)YesYesSep 2026
7Duo MobileDuo MobileFree4.9★ (2.3M)NoNoSep 2026
8Two Factor Authenticator AppTwo Factor Authenticator AppFree4.5★ (58)YesYesSep 2026

Top Picks for Two Factor Authenticator App

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
4.7😊(35K ratings)
Free
2FA Authenticator (2FAS) screenshot 1
2FA Authenticator (2FAS) screenshot 2
2FA Authenticator (2FAS) screenshot 3
2FA Authenticator (2FAS) screenshot 4
2FA Authenticator (2FAS) screenshot 5
2FA Authenticator (2FAS) screenshot 6

Securely log in to your online accounts with two-factor authentication. This app protects your personal data and passwords from cyber threats with a simple, private, and open-source solution. It offers easy token restoration, app protection, and offline functionality.

What We Love

  • 🚀 Efficient and fast
  • 🔒 Secure and private
  • 👍 Simple and intuitive UI
  • 💡 Customizable icons and folders
  • 🔒 iCloud backup and sync

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔒 Lack of password/PIN protection
  • 🕰 No Apple Watch app
  • 🐛 Issues with push notifications
  • 🕰 Missing desktop/web app
Microsoft Authenticator#3

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Worth Considering
📊 Productivity
4.7😞(703K ratings)
Free
#5in 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

More Two Factor Authenticator App apps to explore

FAQ about Two Factor Authenticator App

What is the best two factor authenticator app for iPhone?
Google Authenticator tops our two factor authenticator app ranking as of September 2026, with a 4.9-star average from 1.2M App Store ratings, and it's free to download.
Yes — 20 of the top two factor authenticator app we rank are free to download, including Google Authenticator and 2FA Authenticator (2FAS).
Google Authenticator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ two factor authenticator app on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

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