Best Authenticator App Proton

249+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated September 2026

The best authenticator app proton on iPhone average 4.0★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Authenticator App Proton (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Proton AuthenticatorProton AuthenticatorFree4.4★ (242)NoNoSep 2026
2Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (694K)NoNoSep 2026
3Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoSep 2026
4Proton Pass - Password ManagerProton Pass - Password ManagerFree4.8★ (7.8K)NoYesSep 2026
5Duo MobileDuo MobileFree4.9★ (2.3M)NoNoSep 2026
6ID.me AuthenticatorID.me AuthenticatorFree4.3★ (100K)NoNoSep 2026
72FA Authenticator (2FAS)2FA Authenticator (2FAS)Free4.7★ (35K)NoNoSep 2026
8Salesforce AuthenticatorSalesforce AuthenticatorFree4.6★ (4.3K)NoNoSep 2026

Top Picks for Authenticator App Proton

Proton Authenticator#1

Proton Authenticator by Proton AG

Secure 2FA Authenticator
Editor's Choice
📊 Productivity
4.4😊(242 ratings)
Free
Proton Authenticator screenshot 1
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Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

What We Love

  • 🚀 Cross-platform support
  • 🔒 Secure cloud sync
  • 👍 Easy import from other authenticators
  • 🚀 Convenient 'next' feature for codes

Room to Improve

  • 🐛 Buggy UI (scrolling jitters, random sorting)
  • 👎 Lack of customization options (pin favorites, change icons)
  • 🐛 Sync/login issues on iPad
Microsoft Authenticator#2

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Strong Contender
📊 Productivity
4.7😞(694K ratings)
Free
#7in 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
4.9😞(1.2M ratings)
Free
#3in Utilities
Google Authenticator screenshot 1
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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

More Authenticator App Proton apps to explore

FAQ about Authenticator App Proton

What is the best authenticator app proton for iPhone?
Proton Authenticator tops our authenticator app proton ranking as of September 2026, with a 4.4-star average from 242 App Store ratings, and it's free to download.
Yes — 20 of the top authenticator app proton we rank are free to download, including Proton Authenticator and Microsoft Authenticator.
Proton Authenticator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 249+ authenticator app proton on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Proton Authenticator is an app designed to securely store and generate your two-factor authentication (2FA) codes. It helps protect your online accounts by requiring a second verification step beyond just your password, ensuring enhanced security.
Key features include end-to-end encrypted iCloud sync for seamless cross-device access, effortless import from other authenticator apps like Google Authenticator, secure backup and export options, and a strong commitment to Swiss privacy laws. It is also open source and ad-free.