Best Authenticator Apps

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated August 2026

Microsoft Authenticator is the household name in authenticator, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Authenticator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (677K)NoNoAug 2026
2Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.1M)NoNoAug 2026
3Authenticator AppAuthenticator AppFree4.6★ (48K)NoYesAug 2026
4Authenticator ·Authenticator ·Free4.6★ (26K)NoYesAug 2026
5Duo MobileDuo MobileFree4.9★ (2.2M)NoNoAug 2026
6ID.me AuthenticatorID.me AuthenticatorFree4.3★ (100K)NoNoAug 2026
7Authenticator ℠ AppAuthenticator ℠ AppFree4.3★ (4.4K)YesYesAug 2026
8Authenticator™ AppAuthenticator™ AppFree4.1★ (435)NoYesAug 2026

Top Picks for Authenticator

Microsoft Authenticator#1

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Editor's Choice
📊 Productivity
4.7😞(677K ratings)
Free
#5in 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
Google Authenticator#2

Google Authenticator by Google

Strong Contender
🔧 Utilities
4.9😞(1.1M ratings)
Free
#3in 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

Room to Improve

  • 🐛 Randomly deleted all codes
  • 🐛 Unreliable, lost access to accounts
  • 🐛 Timing issues, codes didn't work
Authenticator App#3

Authenticator App by 2Stable

2FA Authentication MFA & OTP
Worth Considering
📊 Productivity
4.6😊(48K ratings)
FreeIn-App Purchases
#44in Productivity
Authenticator App screenshot 1
Authenticator App screenshot 2
Authenticator App screenshot 3
Authenticator App screenshot 4
Authenticator App screenshot 5
Authenticator App screenshot 6

This app provides secure two-factor authentication codes for your online accounts, enhancing security with encryption and backups. It offers seamless synchronization across Apple devices and quick access via widgets, even when offline.

What We Love

  • 🚀 Works well
  • 🔒 Secure and reliable
  • 👍 Easy to use and set up
  • 💡 Excellent cross-device sync and backup

Room to Improve

  • 🐛 Compatibility issues with newer devices
  • 💰 Expensive subscription
  • 🔒 Limited free version

More Authenticator apps to explore

4
Authenticator ·
Authenticator ·
Authenticator ·
2FA, Two Factor Authentication
Free

Securely store and generate two-factor authentication (2FA) tokens for your online accounts. Protect your accounts from hackers with an additional layer of security. Features encrypted backups, cross-device synchronization, and a private browser.

Secure 2FA token generationEncrypted iCloud backupsCross-device synchronization
🔧 Utilities
(26K)
free with in-app purchases
5
Duo Mobile
Duo Mobile
Duo Mobile
Security made simple
Free

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.

Two-factor authenticationPasscode generationPush notification authentication
💼 Business
(2.2M)
free
6
ID.me Authenticator
ID.me Authenticator
ID.me Authenticator
by ID.me
Free

This app provides a free multi-factor authentication solution for your account, adding an extra security layer to prevent unauthorized access. It generates secure verification tokens, including time-based codes and push notifications, to confirm your identity during login.

Multi-factor authentication (MFA)Time-based one-time passwords (TOTP)Push notification verification
📊 Productivity
(100K)
free
7
Authenticator ℠ App
Authenticator ℠ App
Authenticator ℠ App
Authentication App: 2FA, MFA
Free

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.

Secure TOTP verification codesFast and easy account setupFull control over 2FA accounts
🔧 Utilities
(4.4K)
free with in-app purchases
8
Authenticator™ App
Authenticator™ App
Authenticator™ App
Authenticator App
Free

This app generates secure, time-based one-time passwords for two-factor authentication. It supports automatic setup via QR code and works offline, synchronizing across Apple devices with iCloud backup and encryption.

Automatic QR code setupOffline code generationiCloud Backup & Encryption
🔧 Utilities
(435)
free with in-app purchases
9
2FA Authenticator (2FAS)
2FA Authenticator (2FAS)
2FA Authenticator (2FAS)
#1 Rated 2FA Authenticator
Free

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.

Two-factor authenticationToken backup and restoreApp protection with passcode/biometrics
📊 Productivity
(35K)
free
10
Twilio Authy
Twilio Authy
Twilio Authy
by Authy Inc.
Free

This app provides a secure and convenient way to manage two-factor authentication tokens for your online accounts. It offers features like cloud backups, multi-device synchronization, and offline token generation to enhance account security and prevent lockouts.

Secure 2-step verification token generationEncrypted cloud backupsMulti-device synchronization
🔧 Utilities
(53K)
free
11
Authenticator App+
Authenticator App+
Authenticator App+
2FA Two Factor Authentication
Free

Secure your online accounts with this app. It generates and stores two-factor authentication codes for popular services. Features include QR code scanning, end-to-end encryption, and device syncing.

Generate and store 2FA/MFA codesScan QR codes or enter manuallyEnd-to-end encryption
📊 Productivity
(12K)
subscription
12
Authenticator
Authenticator
Authenticator
Simple 2-factor authentication
Free

This app provides a secure and straightforward way to protect your online accounts. It generates one-time passwords that, when combined with your regular password, significantly enhance your account security. The app operates offline, ensuring your sensitive data remains on your device.

Generates one-time passwordsQR code setupEncrypted data storage
🔧 Utilities
(407)
free
13
VMP Authenticator App
VMP Authenticator App
VMP Authenticator App
Generate 2FA Code for Any App
Free

Enhance your online security with this app that generates time-based one-time passwords for two-factor authentication. Securely manage multiple accounts, set up instantly via QR code, and access codes offline. Your data remains encrypted on your device for robust protection against unauthorized access.

Instant QR code setupTime-based one-time passwords (TOTP)Multi-account management
🔧 Utilities
(4)
free
14
Authenticator App ™
Authenticator App ™
Authenticator App ™
Two Factor Authentication
Free

This app provides a secure way to manage two-factor authentication (2FA) for your online accounts. It generates time-based one-time passwords (TOTP) that update every 30 seconds, offering an extra layer of security without needing an internet connection. Features include iCloud backup, cross-device synchronization, and biometric unlock.

Time-based one-time password (TOTP) generationSecure iCloud backup and encryptionSynchronization across all devices
🔧 Utilities
(24K)
free with in-app purchases
15
Salesforce Authenticator
Salesforce Authenticator
Salesforce Authenticator
by salesforce.com
Free

Enhance your online security with multi-factor authentication. This app sends push notifications to your device for identity verification, allowing you to approve or deny login attempts with a simple tap. It also offers one-time verification codes for offline use and can automate approvals for trusted locations.

Multi-factor authenticationPush notification approvalsOne-time verification codes
💼 Business
(4.3K)
free
16
Authenticator App · 2FA, MFA
Authenticator App · 2FA, MFA
Authenticator App · 2FA, MFA
Secure OTP, Tokens & Passwords
Free
🔧 Utilities
(0)
17
Okta Verify
Okta Verify
Okta Verify
by Okta, Inc.
Free

This app provides a secure way to verify your identity for account access. It offers two-factor authentication through temporary codes or push notifications. The app prioritizes privacy, only requesting camera access for initial device registration.

Two-step verificationGenerate 6-digit codesApprove sign-in requests via push notification
💼 Business
(37K)
free
18
Keyzy : 2fa Authenticator
Keyzy : 2fa Authenticator
Keyzy : 2fa Authenticator
Secure Your Social Accounts
Free
🔧 Utilities
(0)
19
Goldman Sachs Authenticator
Goldman Sachs Authenticator
Goldman Sachs Authenticator
Banking & Finance
Free
💰 Finance
(0)
20
KaseyaOne Authenticator
KaseyaOne Authenticator
KaseyaOne Authenticator
by Kaseya International
Free

Streamline your multi-factor authentication with instant push notifications. Securely approve logins with biometrics and a simple tap, saving significant time daily.

Push-MFA notificationsBiometric unlockOne-tap approval
💼 Business
(7)
free

FAQ about Authenticator

What are the best authenticator apps for iPhone?
Microsoft Authenticator tops our authenticator apps ranking as of August 2026, with a 4.7-star average from 677K App Store ratings, and it's free to download.
Yes — 20 of the top authenticator apps we rank are free to download, including Microsoft Authenticator and Google Authenticator.
Microsoft Authenticator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ authenticator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Microsoft Authenticator is a mobile application designed to enhance online security. It provides multi-factor authentication (MFA), passwordless login options, and password autofill capabilities for various online accounts, including personal, work, and school accounts.
When MFA is enabled, after entering your password, you'll be prompted to verify your identity. This can be done by approving a notification sent to the app or by entering a time-based one-time password (OTP) generated by the app. These OTP codes refresh every 30 seconds and do not require a network connection.

Related searches