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Best Two Way Authentication Apps

233+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated May 2026

Out of 233+ two way authentication apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Two Way Authentication

Google Authenticator#1

Google Authenticator by Google LLC

Editor's Choice
๐Ÿ”ง Utilities
4.9๐Ÿ˜ž(1M ratings)
Free
#5in 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

A secure two-step verification app that generates codes for logging into online accounts, adding an extra layer of security beyond passwords. Easily sync codes across devices, set up accounts with QR codes, and manage multiple accounts in one place. To start securing your accounts, enable 2-Step Verification on your Google Account.

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#2

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Strong Contender
๐Ÿ“Š Productivity
4.7๐Ÿ˜ž(652K 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

A secure app for easy online account sign-ins, offering multi-factor authentication, passwordless login, and password autofill features. Manage Microsoft and non-Microsoft accounts with added security layers like fingerprint, face ID, or PIN. Stay protected and simplify access to various online services.

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
Duo Mobile#3

Duo Mobile by Duo Security LLC

Security made simple
Worth Considering
๐Ÿ’ผ Business
4.9๐Ÿ˜(2.1M ratings)
Free
#8in Business
Duo Mobile screenshot 1
Duo Mobile screenshot 2
Duo Mobile screenshot 3
Duo Mobile screenshot 4

"Duo Mobile simplifies security by generating passcodes for two-factor authentication and providing easy, one-tap login authentication through push notifications on iOS devices. It also manages two-factor authentication for various other services and applications. Activate and link the app to your Duo account to start using its features."

What We Love

  • ๐Ÿ‘ Simple and easy to use
  • ๐Ÿ”’ Provides an extra layer of security
  • ๐Ÿš€ Quick and convenient authentication
  • ๐Ÿ”’ Secure login experience

Room to Improve

  • ๐Ÿ› Unreliable notifications and push functionality
  • ๐Ÿ› Compatibility issues when changing devices
  • ๐Ÿ› Slow and frustrating authentication process

More Two Way Authentication apps to explore

4
Authenticator App+
Authenticator App+
Authenticator App+
2FA Two Factor Authentication
Free

Secure all your online accounts with our Authenticator App. Easily scan, generate, and save 2FA codes for enhanced security. Download now for peace of mind online!

๐Ÿ“Š Productivity
(12K)
5
2FA Authenticator (2FAS)
2FA Authenticator (2FAS)
2FA Authenticator (2FAS)
#1 Rated 2FA Authenticator
Free

A secure two-factor authentication app that generates codes for additional account security. Protect your online accounts with an extra layer of verification.

๐Ÿ“Š Productivity
(34K)
6
Authenticator App - 2FA Auth +
Authenticator App - 2FA Auth +
Authenticator App - 2FA Auth +
OTP Two Factor for ID Verify
Free

This application provides secure two-factor authentication for your accounts, ensuring added protection against unauthorized access. Safeguard your online presence with ease by downloading the app now.

๐Ÿ“Š Productivity
(2.2K)
7
Authenticator App - OneAuth
Authenticator App - OneAuth
Authenticator App - OneAuth
Secure your online accounts
Free

Secure your online accounts with an industry-standard authenticator app. Enable two-factor authentication, back up and sync accounts across all devices easily, and enjoy enhanced security features like passwordless sign-in and biometric authentication. Download now to experience enhanced online security.

๐Ÿ”ง Utilities
(33K)
8
Salesforce Authenticator
Salesforce Authenticator
Salesforce Authenticator
by salesforce.com
Free

A mobile app that enhances online account security through multi-factor authentication, using push notifications for quick approval or denial of account activities. It also offers one-time verification codes for offline use and can utilize location services for automatic approvals. Secure your accounts that support time-based one-time passwords with this convenient tool.

๐Ÿ’ผ Business
(4.1K)
9
SafeNet MobilePASS+
SafeNet MobilePASS+
SafeNet MobilePASS+
Thales Group
Free

SafeNet MobilePASS provides seamless and secure authentication through push approval and one-time passcodes. Easily enroll with QR codes, use TouchID/FaceID, and integrate with various apps for enhanced security. Start protecting your accounts today.

๐Ÿ’ผ Business
(112K)
10
Authenticator app - 2FA, MFA
Authenticator app - 2FA, MFA
Authenticator app - 2FA, MFA
Two Factor Authentication, OTP
Free

Protect your accounts with our free authenticator app that offers 2FA security for various platforms. With support for over 1000 apps, including Apple Watch compatibility, ensure your accounts are secure.

๐Ÿ”ง Utilities
(4.9K)
11
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
by RSA Security
Free

This app provides strong authentication through OTP credentials, cloud-based MFA, push notifications, and biometrics for enhanced security. It is suitable for iOS and macOS users looking for a secure and convenient authentication solution. Check the App Store for more information.

๐Ÿ’ผ Business
(319)
12
Authenticator
Authenticator
Authenticator
Simple 2-factor authentication
Free

"Enhance your online security with a simple, free, and open-source two-factor authentication app. Easily generate unique one-time passwords for your accounts using secure encryption methods, offline capabilities, and support for various password formats. Protect your accounts now!"

๐Ÿ”ง Utilities
(407)
13
Authenticator ยฎ App
Authenticator ยฎ App
Authenticator ยฎ App
Two Factor Authentication Aั€ั€
Free

Enhance your online security with our all-in-one mobile Authenticator App for 2FA and MFA authentication. Simply scan a QR code to secure your accounts with time-sensitive codes, cloud backups, privacy features, and more. Download today for peace of mind in the digital world!

๐Ÿ“Š Productivity
(3K)
14
Authenticator App โ„ข
Authenticator App โ„ข
Authenticator App โ„ข
Two Factor Authentication
Free

Secure your online accounts with an advanced two-factor authentication app that generates time-based codes for enhanced security when logging in. Compatible with over 2,500 websites, streamline your multi-factor authentication setup by scanning QR codes.

๐Ÿ”ง Utilities
(21K)
15
SecureAuth Authenticate
SecureAuth Authenticate
SecureAuth Authenticate
by SecureAuth Corporation
Free

SecureAuth Authenticate is a modern mobile app for secure identity verification and accessing apps with multi-factor authentication. It offers personal and business features, including generating one-time passcodes and supporting account security for various apps. Get started with SecureAuth Authenticate at https://www.secureauth.com/secureauth-authenticate.

๐Ÿ’ผ Business
(6)
16
Authenticator ยท
Authenticator ยท
Authenticator ยท
2FA, Two Factor Authentication
Free

Secure your online accounts with Authenticator 7, an app that stores and generates secure 2FA tokens for added account protection. Safeguard your accounts from hackers with this easy-to-use two-factor authentication solution.

๐Ÿ”ง Utilities
(26K)
17
Authenticator App
Authenticator App
Authenticator App
2FA Authentication MFA & OTP
Free

Protect your accounts with an advanced authentication app offering both Two-Factor Authentication (2FA) and Multi-Factor Authentication (MFA) features. Secure your online presence now.

๐Ÿ“Š Productivity
(46K)
18
BlazeAuth - MFA Authenticator
BlazeAuth - MFA Authenticator
BlazeAuth - MFA Authenticator
Two-Factor Authentication Code
Free
๐Ÿ”ง Utilities
(79)
19
Authenticator App - Two Factor
Authenticator App - Two Factor
Authenticator App - Two Factor
Two-factor - Duo Security
Free

Secure all your online accounts with our must-have Authenticator App - Two Factor. Our app provides simple and free Two Factor Authentication (2FA) solutions to keep your accounts safe with 6-digit Time-Based One-Time Passwords (TOTP). Protect your accounts from hackers by adding an extra layer of security today.

๐Ÿ”ง Utilities
(400)
20
OT Advanced Authentication
OT Advanced Authentication
OT Advanced Authentication
by NetIQ Corporation
Free

Secure your sensitive information with a multifactor authentication solution that goes beyond passwords. Visit the link for more details on how to enhance your protection: https://www.netiq.com/products/advanced-authentication-framework/features/

๐Ÿ’ผ Business
(140)

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