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Best Free Otp Authenticator Apps

237+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated April 2026

Whether you're new to free otp authenticator or looking for an upgrade, our curated collection of 237+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Free Otp Authenticator

FreeOTP Authenticator#1

FreeOTP Authenticator by Red Hat, Inc.

Editor's Choice
๐Ÿ”ง Utilities
3.2๐Ÿ˜(166 ratings)
Free
FreeOTP Authenticator screenshot 1
FreeOTP Authenticator screenshot 2

Generate one-time passwords for enhanced online account security. This app creates temporary codes that, when used with your regular password, significantly strengthen your login protection. It functions even without an internet connection.

What We Love

  • ๐Ÿš€ Simple and lightweight
  • ๐Ÿ”’ Open source and privacy-focused
  • ๐Ÿ‘ Clean and intuitive interface
  • ๐Ÿ’ก Customizable icons for accounts

Room to Improve

  • ๐Ÿ› Crashes and bugs after recent updates
  • ๐Ÿ”’ Lack of backup/restore functionality
  • ๐Ÿ’ก Limited customization options
Google Authenticator#2

Google Authenticator by Google LLC

Strong Contender
๐Ÿ”ง Utilities
4.9๐Ÿ˜ž(1.1M ratings)
Free
#4in 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

  • ๐Ÿ‘ User-friendly
  • ๐Ÿ”’ Secure authentication
  • ๐Ÿš€ Simple and fast
  • ๐Ÿ”’ Reliable security

Room to Improve

  • ๐Ÿ› Randomly deleted all codes
  • ๐Ÿ› Unreliable, lost access to accounts
  • ๐Ÿ› Timing issues, codes didn't work
Microsoft Authenticator#3

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Worth Considering
๐Ÿ“Š Productivity
4.7๐Ÿ˜ž(663K ratings)
Free
#6in 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

  • ๐Ÿš€ Seamless authentication
  • ๐Ÿ”’ Secure login process
  • ๐Ÿ‘ Convenient passwordless sign-in
  • ๐Ÿš€ Smooth app performance

Room to Improve

  • ๐Ÿ› Broken Apple Watch functionality
  • ๐Ÿ› Backup and restore issues
  • ๐Ÿ› Confusing login flow

More Free Otp Authenticator apps to explore

4
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
๐Ÿ’ผ Business
(2.2M)
free
5
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
๐Ÿ”ง Utilities
(53K)
free
6
OTP Authenticator
OTP Authenticator
OTP Authenticator
by Swiss SafeLab GmbH
Free
๐Ÿ”ง Utilities
(0)
7
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
๐Ÿ“Š Productivity
(34K)
free
8
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
๐Ÿ“Š Productivity
(46K)
subscription
9
Authenticator App โ„ข
Authenticator App โ„ข
Authenticator App โ„ข
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
๐Ÿ”ง Utilities
(21K)
free with in-app purchases
10
Authenticator ยท
Authenticator ยท
Authenticator ยท
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
๐Ÿ”ง Utilities
(26K)
free with in-app purchases
11
Authenticator ยฎ App
Authenticator ยฎ App
Authenticator ยฎ App
Two Factor Authentication Aั€ั€
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
๐Ÿ“Š Productivity
(3K)
free with in-app purchases
12
Two Factor Authenticator & OTP
Two Factor Authenticator & OTP
Two Factor Authenticator & OTP
Simple 2FA authentication app
Free

Enhance your online security with robust two-factor and multi-factor authentication. This app generates secure one-time passwords and supports multiple protocols, with features like backup, restore, and encrypted data storage for peace of mind.

Two-Factor Authentication (2FA)Multi-Factor Authentication (MFA)TOTP and HOTP Support
๐Ÿ”ง Utilities
(133)
subscription
13
OTP Auth
OTP Auth
OTP Auth
2-Factor Auth for Pros
Free

Enhance your account security with two-factor authentication on your iPhone and iPad. This app supports numerous popular services and offers robust encryption for all your data. It works offline and prioritizes user privacy by not collecting or transmitting personal information.

Two-factor authentication supportEncrypted iCloud SyncSiri and Apple Watch support
๐Ÿ”ง Utilities
(463)
free with in-app purchases
14
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
๐Ÿ“Š Productivity
(12K)
subscription
15
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
๐Ÿ“Š Productivity
(100K)
free
16
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
by RSA Security
Free

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.

Multi-Factor Authentication (MFA)Passwordless Security with PasskeysOne-Time Passcodes (OTP)
๐Ÿ’ผ Business
(319)
free
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
๐Ÿ“ฐ Magazines & Newspapers
(34)
subscription
18
Authenticator
Authenticator
Authenticator
Authentication for Google
Free

Enhance your online account security with this two-factor authentication utility. Easily add accounts by scanning QR codes and benefit from bank-grade encryption and biometric unlock for peace of mind. Supports thousands of websites and services.

Bank-Grade EncryptionSecure 2FA and MFA TokensEffortless Setup (QR Scan)
๐Ÿ“Š Productivity
(325)
free with in-app purchases
19
Authenticator ยฉ
Authenticator ยฉ
Authenticator ยฉ
Authenticator app, 2fa
Free

Secure your online accounts with two-factor authentication tokens. Easily add accounts by scanning QR codes or manual entry. This app also offers password management to store and organize your credentials.

Secure accounts with 2FAAdd accounts via QR code or manual entryPassword management and storage
๐Ÿ’ผ Business
(2.3K)
free with in-app purchases
20
Authenticator App - 2FA โ—ฆ MFA
Authenticator App - 2FA โ—ฆ MFA
Authenticator App - 2FA โ—ฆ MFA
Two Factor Authentication: OTP
Free

Enhance your online security with two-factor authentication. This app securely stores all your 2FA tokens, adding an extra layer of defense to your accounts. Easily set up by scanning QR codes or manual entry for email, social media, and banking.

Two-factor authenticationSecure token storageQR code scanning
๐Ÿ”ง Utilities
(78)
free with in-app purchases