Best Time-Based One-Time Password App

249+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

Finding the right time-based one-time password app can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Time-Based One-Time Password App (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoSep 2026
2Authenticator ℠ AppAuthenticator ℠ AppFree4.3★ (5.4K)YesYesSep 2026
3Duo MobileDuo MobileFree4.9★ (2.3M)NoNoSep 2026
4TOTP Authenticator – Fast 2FATOTP Authenticator – Fast 2FAFree4.7★ (3.9K)NoYesSep 2026
5One-Time PasswordOne-Time PasswordFree—NoNoSep 2026
6Piteco One-Time PasswordPiteco One-Time PasswordFree—NoNoMay 2026
7Authenticator App - NexAuthAuthenticator App - NexAuthFree—NoYesJul 2026
8Authenticator : One Time PassAuthenticator : One Time PassFree—NoNoMay 2026

Top Picks for Time-Based One-Time Password App

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
Authenticator ℠ App#2

Authenticator ℠ App by BEGAMOB GLOBAL LIMITED

Authentication App: 2FA, MFA
Strong Contender
🔧 Utilities
4.3(5.4K ratings)
FreeAdsIn-App Purchases
#13in Utilities
Authenticator ℠ App screenshot 1
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Authenticator ℠ App screenshot 6

Secure your online accounts with standards-based two-factor authentication. This app generates time-based one-time passwords directly on your device, offering a reliable second step for sign-ins without relying on SMS codes. Protect personal and work accounts across various platforms.

Duo Mobile#3

Duo Mobile by Duo Security LLC

Security made simple
Worth Considering
💼 Business
4.9😐(2.3M ratings)
Free
#17in Business
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Enhance login security with two-factor authentication. Generate passcodes or use one-tap push notifications for seamless access to your accounts. Manage authentication for multiple applications and web services.

What We Love

  • 👍 Simple and easy to use
  • 🔒 Provides an extra layer of security
  • 🚀 Quick and convenient authentication
  • 🔒 Secure login experience
  • 👍 Straightforward and user-friendly
  • 👍 Easy to set up and use

Room to Improve

  • 🐛 Unreliable notifications and push functionality
  • 🐛 Compatibility issues when changing devices
  • 🐛 Slow and frustrating authentication process
  • 🐛 Confusing and non-intuitive user interface
  • 🐛 Forced use of the app causing inconvenience
  • 🐛 Inability to remove or deactivate the app

More Time-Based One-Time Password App apps to explore

FAQ about Time-Based One-Time Password App

What is the best time-based one-time password app for iPhone?
Google Authenticator tops our time-based one-time password 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 time-based one-time password app we rank are free to download, including Google Authenticator and Authenticator ℠ App.
Google Authenticator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 249+ time-based one-time password 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.