Best Authenticator App Security

247+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated August 2026

Whether you're new to authenticator app security or looking for an upgrade, our curated collection of 247+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Authenticator App Security (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (687K)NoNoAug 2026
2Salesforce AuthenticatorSalesforce AuthenticatorFree4.6★ (4.3K)NoNoAug 2026
3RSA Authenticator (SecurID)RSA Authenticator (SecurID)Free2.7★ (327)NoNoAug 2026
4Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoAug 2026
5ID.me AuthenticatorID.me AuthenticatorFree4.3★ (100K)NoNoAug 2026
6Duo MobileDuo MobileFree4.9★ (2.2M)NoNoAug 2026
7Authenticator App - OneAuthAuthenticator App - OneAuthFree4.7★ (33K)NoNoAug 2026
8Authenticator App -2FA SecureAuthenticator App -2FA SecureFree3.0★ (3)YesYesAug 2026

Top Picks for Authenticator App Security

Microsoft Authenticator#1

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Editor's Choice
📊 Productivity
4.7😞(687K ratings)
Free
#4in 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
Salesforce Authenticator#2

Salesforce Authenticator by salesforce.com

Strong Contender
💼 Business
4.6😐(4.3K ratings)
Free
Salesforce Authenticator screenshot 1
Salesforce Authenticator screenshot 2
Salesforce Authenticator screenshot 3
Salesforce Authenticator screenshot 4
Salesforce Authenticator screenshot 5

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.

What We Love

  • 🚀 Fast and efficient
  • 🔒 Secure authentication
  • 👍 Easy to use
  • 🔋 Reliable backup feature

Room to Improve

  • 🐛 Inconsistent location tracking
  • 🐛 Frequent re-authentication required
  • 🐛 Unreliable push notifications
RSA Authenticator (SecurID)#3

RSA Authenticator (SecurID) by RSA Security

Worth Considering
💼 Business
2.7😞(327 ratings)
Free
RSA Authenticator (SecurID) screenshot 1
RSA Authenticator (SecurID) screenshot 2
RSA Authenticator (SecurID) screenshot 3
RSA Authenticator (SecurID) screenshot 4
RSA Authenticator (SecurID) screenshot 5
RSA Authenticator (SecurID) screenshot 6

This app provides multi-factor authentication for enterprises, offering passwordless security through device-bound passkeys. It supports various authentication methods like OTP, biometrics, and push notifications to secure digital access.

What We Love

  • 🚀 Works great
  • 🔒 Secure authentication
  • 👍 Easy to use
  • 🚀 Convenient alternative to hardware token

Room to Improve

  • 🐛 Face ID bug
  • 🐛 Persistent token disappearing issue
  • 🐛 Buggy app

More Authenticator App Security apps to explore

4
Google Authenticator
Google Authenticator
Google Authenticator
by Google
Free

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.

Offline code generationSync codes across devicesAutomatic QR code setup
🔧 Utilities
(1.2M)
free
5
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
6
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
7
Authenticator App - OneAuth
Authenticator App - OneAuth
Authenticator App - OneAuth
Secure your online accounts
Free

Secure your online accounts with industry-standard two-factor authentication. Easily add accounts, generate time-based OTPs, and benefit from encrypted backups. Organize and manage your TFA with features like folders, brand logos, and search.

Add accounts via QR code or manual entryTime-based OTPs (offline access)Encrypted backup and secure recovery
🔧 Utilities
(33K)
free
8
Authenticator App -2FA Secure
Authenticator App -2FA Secure
Authenticator App -2FA Secure
Secure Sign into Your Accounts
Free

This app provides a secure way to manage your online accounts with two-factor authentication (2FA). It generates time-based one-time passwords (TOTP) to protect against unauthorized access and offers features like cloud synchronization, a private photo album, and a security center for enhanced digital safety.

Two-factor authentication (2FA) supportGenerates time-based one-time passwords (TOTP)Cloud synchronization for data backup
🔧 Utilities
(3)
free with in-app purchases
9
Authenticator App ℠
Authenticator App ℠
Authenticator App ℠
2FA, Two Factor Authentication
Free

Secure your online accounts with this app's two-factor authentication. It generates time-based one-time passwords directly on your device, offering a reliable second step for sign-ins without relying on SMS. Protect over 1,000 apps and manage all your authentication entries in one place.

Secure TOTP verification codesEasy QR code scanning setupPassword leak detection
📊 Productivity
(2)
free with in-app purchases
10
Authenticator App - 2FA / OTP
Authenticator App - 2FA / OTP
Authenticator App - 2FA / OTP
Two-Factor Login & Secure MFA
Free

This app provides secure two-factor authentication (2FA) and multi-factor authentication (MFA) by generating time-based one-time passwords (TOTP) for online accounts. It offers encrypted backups, cloud sync, and QR code support for easy account management across multiple devices.

Secure 2FA/MFA code generationEncrypted backup and cloud syncQR code account addition
📊 Productivity
(12)
free with in-app purchases
11
Authenticator App.
Authenticator App.
Authenticator App.
Authenticator, 2FA, SmartDo
Free

This app generates verification codes to secure your accounts and simplify logins. It also offers AI-powered to-do list management with voice and text input, and customizable widgets for quick task access.

Generate time-based one-time passwords (TOTP)AI-powered to-do list managementVoice and text input for tasks
📊 Productivity
(55)
free with in-app purchases
12
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
13
Authenticator App・ 2FA, MFA
Authenticator App・ 2FA, MFA
Authenticator App・ 2FA, MFA
Secure 2FA & OTP Codes
Free

This app generates time-based one-time passwords for enhanced login security. It supports multiple accounts, QR code scanning for easy setup, and biometric protection. Premium offers unlimited access to all features, including a built-in password manager and breach checking.

Secure 2FA code generationQR code scanning setupMulti-account support
🔧 Utilities
(7)
freemium
14
Authenticator App : Scan & 2FA
Authenticator App : Scan & 2FA
Authenticator App : Scan & 2FA
Secure Authenticator 2FA & MFA
Free

Enhance your account security with this app, offering robust two-factor and multi-factor authentication. It generates secure verification codes for over 1000 popular services and backs them up safely via iCloud. Protect your sensitive data with an extra layer of defense.

Two-factor and Multi-Factor AuthenticationSecure code generation for 1000+ appsiCloud backup for verification codes
🔧 Utilities
(29)
free with in-app purchases
15
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
16
MFA Authenticator: Secure 2FA
MFA Authenticator: Secure 2FA
MFA Authenticator: Secure 2FA
2 Factor Auth: OTP & Verify
Free

This app simplifies online security by enabling two-factor authentication for all your accounts in one place. It offers secure backups, biometric locks, and seamless device syncing for a private and user-friendly experience.

Two-factor authentication managementSecure token backupsPasscode and biometric app lock
🔧 Utilities
(104)
freemium
17
Authenticator+ App
Authenticator+ App
Authenticator+ App
Authentication OTP 2FA/MFA
Free

This app provides an unlimited proxy and ad blocker for Safari, enhancing your browsing experience. It also offers a VPN manager with numerous servers and a data manager to track Wi-Fi and cellular data usage.

Ad blocking for SafariUnlimited proxy accessVPN server manager
📊 Productivity
(3K)
free with in-app purchases
18
Authenticator App†
Authenticator App†
Authenticator App†
2FA Authentication MFA OTP
Free

Secure your online accounts with a versatile two-factor authentication solution. Manage all your authentication codes in one place, offering enhanced security for websites, services, and crypto wallets. Supports biometric access and offline code generation.

Two-factor authentication (2FA)Multi-factor authentication (MFA)Time-based one-time passwords (TOTP)
🔧 Utilities
(2.5K)
free with in-app purchases
19
Authenticator App One
Authenticator App One
Authenticator App One
2FA MFA OTP Code Generator
Free

This app generates secure two-factor authentication codes for your online accounts. It offers encrypted storage, instant backup, and easy account management for services like Google, Facebook, and more. Protect your digital life with a simple and reliable authentication solution.

Secure 2FA & MFA code generationFast QR code setupManual setup key entry
📊 Productivity
(5)
free with in-app purchases
20
Authenticator app - 2FA, MFA
Authenticator app - 2FA, MFA
Authenticator app - 2FA, MFA
Two Factor Authentication, OTP
Free

This app provides secure two-factor authentication for over 1000 popular online accounts. It offers quick access via widgets and Apple Watch, and ensures your data is safe with no internet exchange. Easily set up accounts by scanning QR codes or entering secret keys.

Two-factor authentication (2FA)Multi-factor authentication (MFA)Supports 1000+ apps
🔧 Utilities
(5.7K)
free with in-app purchases

FAQ about Authenticator App Security

What is the best authenticator app security for iPhone?
Microsoft Authenticator tops our authenticator app security ranking as of August 2026, with a 4.7-star average from 687K App Store ratings, and it's free to download.
Yes — 20 of the top authenticator app security we rank are free to download, including Microsoft Authenticator and Salesforce Authenticator.
Microsoft Authenticator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 247+ authenticator app security 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.