Best Authenticator App Gratis

248+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated October 2026

The best authenticator app gratis on iPhone average 4.2★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top Authenticator App Gratis (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoOct 2026
2Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (703K)NoNoOct 2026
3Authenticator App ․Authenticator App ․Free—YesYesAug 2026
4Authenticator App -2FA SecureAuthenticator App -2FA SecureFree3.0★ (3)YesYesSep 2026
5Authenticator ·Authenticator ·Free4.6★ (26K)NoYesOct 2026
6Duo MobileDuo MobileFree4.9★ (2.3M)NoNoOct 2026
7ID.me AuthenticatorID.me AuthenticatorFree4.3★ (100K)NoNoOct 2026
8Authenticator App: 2FA, MFAAuthenticator App: 2FA, MFAFree4.2★ (86)NoYesSep 2026

Top Picks for Authenticator App Gratis

4.9😞(1.2M ratings)
Free
#7in 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
Microsoft Authenticator#2

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Strong Contender
📊 Productivity
4.7😞(703K ratings)
Free
#13in 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 Authenticator App Gratis apps to explore

FAQ about Authenticator App Gratis

What is the best authenticator app gratis for iPhone?
Google Authenticator tops our authenticator app gratis ranking as of October 2026, with a 4.9-star average from 1.2M App Store ratings, and it's free to download.
Yes — 20 of the top authenticator app gratis 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 October 2026.
We track 248+ authenticator app gratis on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.