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
2Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (690K)NoNoSep 2026
3Two Factor Authenticator & OTPTwo Factor Authenticator & OTPFree4.5★ (133)NoYesAug 2026
4Authenticator App -2FA SecureAuthenticator App -2FA SecureFree3.0★ (3)YesYesSep 2026
52FA Authenticator (2FAS)2FA Authenticator (2FAS)Free4.7★ (35K)NoNoSep 2026
6Authenticator App - 2FA TotpAuthenticator App - 2FA TotpFree4.5★ (24)NoYesSep 2026
7Authenticator: 2FA Auth & MFAAuthenticator: 2FA Auth & MFAFree5.0★ (2)NoYesAug 2026
8Authenticator: Secure 2FA AuthAuthenticator: Secure 2FA AuthFree4.5★ (25)YesYesSep 2026

Top Picks for Two Factor Authenticator App

Google Authenticator#1

Google Authenticator by Google

Editor's Choice
🔧 Utilities
4.9😞(1.2M ratings)
Free
#3in Utilities
Google Authenticator screenshot 1
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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
Microsoft Authenticator#2

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Strong Contender
📊 Productivity
4.7😞(690K ratings)
Free
#5in Productivity
Microsoft Authenticator screenshot 1
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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
Two Factor Authenticator & OTP#3

Two Factor Authenticator & OTP by HENRY FOSTER

Simple 2FA authentication app
Worth Considering
🔧 Utilities
4.5(133 ratings)
FreeIn-App Purchases
Two Factor Authenticator & OTP screenshot 1
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Enhance your online security with robust two-factor and multi-factor authentication. This app generates secure one-time passwords and supports multiple protocols, with features like backup, restore, and encrypted data storage for peace of mind.

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 Microsoft Authenticator.
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.
Google Authenticator adds an extra layer of security to your online accounts by generating a second verification code needed to sign in, in addition to your password. This code is generated on your phone.
You can set up your Authenticator accounts automatically by scanning a QR code provided by the service you wish to secure. This is a quick and easy process that ensures correct setup.

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