Best Two Factor Authenticator 2Fa Apps

247+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated September 2026

2FA Authenticator (2FAS) is the household name in two factor authenticator 2fa, but it's far from the only option. We track 247+ alternatives and competitors on iOS โ€” many free, many higher-rated than you'd expect.

Compare top Two Factor Authenticator 2Fa Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
12FA Authenticator (2FAS)2FA Authenticator (2FAS)Free4.7โ˜… (35K)NoNoSep 2026
2Two Factor Authenticator 2FATwo Factor Authenticator 2FAFreeโ€”YesYesSep 2026
3Google AuthenticatorGoogle AuthenticatorFree4.9โ˜… (1.2M)NoNoSep 2026
4Authenticator app - 2FA, MFAAuthenticator app - 2FA, MFAFree4.6โ˜… (5.7K)NoYesSep 2026
5Authenticator: 2FA Authy & MFAAuthenticator: 2FA Authy & MFAFree5.0โ˜… (4)NoYesSep 2026
6Authenticator App - 2FA / OTPAuthenticator App - 2FA / OTPFree3.9โ˜… (12)YesYesSep 2026
7Duo MobileDuo MobileFree4.9โ˜… (2.3M)NoNoSep 2026
8AuthenticatorAuthenticatorFree3.7โ˜… (407)NoNoAug 2026

Top Picks for Two Factor Authenticator 2Fa

2FA Authenticator (2FAS)#1

2FA Authenticator (2FAS) by Two Factor Authentication Service Inc.

#1 Rated 2FA Authenticator
Editor's Choice
๐Ÿ“Š Productivity
4.7๐Ÿ˜Š(35K ratings)
Free
2FA Authenticator (2FAS) screenshot 1
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2FA Authenticator (2FAS) screenshot 3
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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

  • ๐Ÿš€ Efficient and fast
  • ๐Ÿ”’ Secure and private
  • ๐Ÿ‘ Simple and intuitive UI
  • ๐Ÿ’ก Customizable icons and folders
  • ๐Ÿ”’ iCloud backup and sync

Room to Improve

  • ๐Ÿ› Occasional bugs and crashes
  • ๐Ÿ”’ Lack of password/PIN protection
  • ๐Ÿ•ฐ No Apple Watch app
  • ๐Ÿ› Issues with push notifications
  • ๐Ÿ•ฐ Missing desktop/web app
Google Authenticator#3

Google Authenticator by Google

Worth Considering
๐Ÿ”ง Utilities
4.9๐Ÿ˜ž(1.2M ratings)
Free
#5in Utilities
Google Authenticator screenshot 1
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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

  • ๐Ÿ‘ User-friendly
  • ๐Ÿ”’ Secure authentication
  • ๐Ÿš€ Simple and fast
  • ๐Ÿ”’ Reliable security
  • ๐Ÿ‘ Easy to use

Room to Improve

  • ๐Ÿ› Randomly deleted all codes
  • ๐Ÿ› Unreliable, lost access to accounts
  • ๐Ÿ› Timing issues, codes didn't work
  • ๐Ÿ› Accounts duplicated then deleted
  • ๐Ÿ› Wiped all accounts after update

More Two Factor Authenticator 2Fa apps to explore

FAQ about Two Factor Authenticator 2Fa

What are the best two factor authenticator 2fa apps for iPhone?
2FA Authenticator (2FAS) tops our two factor authenticator 2fa apps ranking as of September 2026, with a 4.7-star average from 35K App Store ratings, and it's free to download.
Yes โ€” 20 of the top two factor authenticator 2fa apps we rank are free to download, including 2FA Authenticator (2FAS) and Two Factor Authenticator 2FA.
2FA Authenticator (2FAS) has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 247+ two factor authenticator 2fa apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app enables two-factor authentication (2FA) or multi-factor authentication (MFA) for your online accounts. It helps verify your identity and securely log in, protecting your personal data and passwords from cyber threats.
It uses TOTP and HOTP algorithms to generate time-based or counter-based one-time passwords. You can also enable app protection with a passcode or biometrics, and easily restore your authentication tokens with backups.