Best 2Fast Authenticator Apps

237+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated June 2026

Finding the right 2fast authenticator app can be overwhelming with so many options. We've analyzed 237+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for 2Fast Authenticator

2FA Authenticator (2FAS)#1

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

#1 Rated 2FA Authenticator
Editor's Choice
📊 Productivity
4.7😊(34K ratings)
Free
2FA Authenticator (2FAS) screenshot 1
2FA Authenticator (2FAS) screenshot 2
2FA Authenticator (2FAS) screenshot 3
2FA Authenticator (2FAS) screenshot 4
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

  • 🚀 Efficient and fast
  • 🔒 Secure and private
  • 👍 Simple and intuitive UI
  • 💡 Customizable icons and folders

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔒 Lack of password/PIN protection
  • 🕰 No Apple Watch app
Google Authenticator#2

Google Authenticator by Google LLC

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
Microsoft Authenticator#3

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Worth Considering
📊 Productivity
4.7😞(655K 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

More 2Fast 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
Authenticator App
Authenticator App
Authenticator App
2FA Authentication MFA & OTP
Free

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.

Secure & Private EncryptionEncrypted BackupAutomatic Synchronization
📊 Productivity
(46K)
subscription
6
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
(29)
freemium
7
2FA Authenticator: MFA RSA
2FA Authenticator: MFA RSA
2FA Authenticator: MFA RSA
Verification & Authentication
Free

Enhance your digital security with a robust two-factor authentication solution. Protect sensitive data from unauthorized access with end-to-end encryption and unlimited account management. Sync securely with iCloud for easy access and peace of mind.

Two-factor authenticationEnd-to-end encryptionUnlimited account management
🔧 Utilities
(25)
free with in-app purchases
8
Authenticator: Secure 2FA Auth
Authenticator: Secure 2FA Auth
Authenticator: Secure 2FA Auth
2 Factor Authentication: MFA
Free

Securely manage your two-factor authentication tokens and passwords in one place. This app offers offline code generation and a private in-app browser. Free users can manage existing codes and passwords, while premium subscribers gain unlimited creation and secure browsing.

Organize 2FA tokens and passwordsOffline code generationBuilt-in secure browser
🔧 Utilities
(3)
free with in-app purchases
9
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
10
ID.me Authenticator
ID.me Authenticator
ID.me Authenticator
by ID.me, Inc.
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
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 App - 2FA Totp
Authenticator App - 2FA Totp
Authenticator App - 2FA Totp
MFA Authentication 2 Factor
Free

This app generates secure one-time passwords for your online accounts, offering an extra layer of protection for email, social media, banking, and work platforms. It supports TOTP and HOTP standards, allows easy account setup via QR code or manual entry, and ensures your data stays private and encrypted on your device.

TOTP & HOTP code generationQR code scanning for setupSecure on-device storage
🔧 Utilities
(24)
freemium
13
Authenticator: Secure 2FA, MFA
Authenticator: Secure 2FA, MFA
Authenticator: Secure 2FA, MFA
2 Step Verification Auth: TOTP
Free

This app provides two-factor authentication to secure your online accounts. It generates time-based one-time passwords for various services, offering features like cloud backup, biometric protection, and offline code generation. Protect your digital life with this reliable and user-friendly security solution.

Time-based one-time passwords (TOTP)Secure cloud backup and syncBiometric and PIN protection
🔧 Utilities
(61)
free with in-app purchases
14
Authenticator ® App
Authenticator ® App
Authenticator ® App
Two Factor Authentication Aрр
Free

This app enhances online security by managing two-factor authentication codes for over 1,000 applications. It offers features like password leak detection, VPN protection, and secure password autofill, with cloud backups and biometric security options.

Two-factor authentication code generationPassword leak detectionVPN protection
📊 Productivity
(3K)
free with in-app purchases
15
Authenticator ℠ App
Authenticator ℠ App
Authenticator ℠ App
2FA, Two Factor Authentication
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
(4K)
free with in-app purchases
16
Authenticator App-2FAS・MFA・OTP
Authenticator App-2FAS・MFA・OTP
Authenticator App-2FAS・MFA・OTP
Two Factor Authentication・TOTP
Free

Enhance your online security by generating time-based one-time passcodes for two-factor authentication. Securely manage multiple accounts with effortless setup, biometric integration, and cloud backups. Enjoy a sleek interface with cross-device syncing for ultimate convenience.

Multiple account supportQR code scanning for setupFace ID/Touch ID integration
🔧 Utilities
(400)
free with in-app purchases
17
Multi Authenticator: OTP, MFA
Multi Authenticator: OTP, MFA
Multi Authenticator: OTP, MFA
Mobile 2FA for your Security
Free

This app provides secure storage and management of two-factor authentication codes directly on your device. It offers end-to-end encryption for all data, including cloud backups, ensuring your online accounts are protected without needing an internet connection.

Secure 2FA code storageEnd-to-end encryptionEncrypted cloud backups
📰 Magazines & Newspapers
(34)
subscription
18
Authenticator: AuthSnap
Authenticator: AuthSnap
Authenticator: AuthSnap
Fast. Safe. Verified.
Free

This app simplifies online security by generating one-time passcodes for two-factor authentication. It supports both time-based and counter-based algorithms and offers easy setup via QR code scanning.

QR code scanning for setupTOTP and HOTP supportUser-friendly interface
🔧 Utilities
(11)
freemium
19
2FA Authenticator™ MFA Authy
2FA Authenticator™ MFA Authy
2FA Authenticator™ MFA Authy
Multi-Factor ‣ Authentication
Free

Enhance your online security with two-factor authentication. This app helps you protect accounts by scanning QR codes, backing up tokens, and offering enhanced app protection with passcodes or biometrics. It supports cross-device sync and offline functionality for seamless, anonymous use.

Secure account linking via QR codesToken backup and restorationPasscode/biometric app lock
🔧 Utilities
(105)
free with in-app purchases
20
Authenticator App  #1
Authenticator App  #1
Authenticator App #1
Sign In to All Your Accounts
Free

Securely manage your online accounts with a fast and intuitive authenticator and QR scanner. Easily set up two-factor authentication and access your codes quickly. Keep track of your scan history for convenient access.

Setup 2FA accounts easilyScan QR code & BarcodeManage scan history
🔧 Utilities
(1.3K)
free with in-app purchases