Best As2 Authenticator Apps

235+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated May 2026

Out of 235+ as2 authenticator 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 As2 Authenticator

Authenticator App+#2

Authenticator App+ by Rocket Apps GmbH

2FA Two Factor Authentication
Strong Contender
📊 Productivity
4.8😐(12K ratings)
FreeAdsIn-App Purchases
Authenticator App+ screenshot 1
Authenticator App+ screenshot 2
Authenticator App+ screenshot 3
Authenticator App+ screenshot 4
Authenticator App+ screenshot 5
Authenticator App+ screenshot 6

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!

What We Love

  • 🚀 Easy to use
  • 🔒 Secure authentication
  • 👍 Helpful for account recovery
  • 💡 Useful for online security

Room to Improve

  • 🐛 Login issues
  • 🐛 Accounts disappearing after app updates
  • 🔒 Difficulty resetting passwords
RSA Authenticator (SecurID)#3

RSA Authenticator (SecurID) by RSA Security

Worth Considering
💼 Business
2.7😞(319 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 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.

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 As2 Authenticator apps to explore

4
Authenticator ·
Authenticator ·
Authenticator ·
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.

🔧 Utilities
(26K)
5
ID.me Authenticator
ID.me Authenticator
ID.me Authenticator
by ID.me, Inc.
Free

A free multi-factor authentication app that adds an extra layer of security to your account with time-based one-time passwords, push notifications, and mobile security keys. Easily verify your identity and protect your account from hackers.

📊 Productivity
(100K)
6
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.

📊 Productivity
(34K)
7
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.

📊 Productivity
(46K)
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.

💼 Business
(4.1K)
9
Authenticator ©
Authenticator ©
Authenticator ©
Authenticator app, 2fa
Free

Protect your online accounts with our secure Two-Factor Authentication app. Easily add accounts by scanning QR codes or entering them manually, and manage passwords with our password management feature. Secure your accounts today!

💼 Business
(2.3K)
10
Authenticator App - 2FA MFA
Authenticator App - 2FA MFA
Authenticator App - 2FA MFA
2FA, Two Factor Authentication
Free
🔧 Utilities
(287)
11
Authenticator App ™
Authenticator App ™
Authenticator App ™
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.

🔧 Utilities
(21K)
12
Google Authenticator
Google Authenticator
Google Authenticator
by Google
Free

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.

🔧 Utilities
(1M)
13
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!"

🔧 Utilities
(407)
14
Authenticator App · 2FA
Authenticator App · 2FA
Authenticator App · 2FA
2FA: Two Factor Authentication
Free

An ultra-secure 2FA app for safeguarding online accounts with TOTP generation and account synchronization across devices. Protect your accounts and streamline 2FA codes management with ease.

🔧 Utilities
(343)
15
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.

🔧 Utilities
(4.9K)
16
Authy Authenticator
Authy Authenticator
Authy Authenticator
2FA Authentication MFA & OTP
Free

This application provides a secure and convenient way to manage Two-Factor Authentication (2FA) codes for multiple online accounts, generating time-based one-time passwords to prevent unauthorized access. With features like iCloud backup, Apple Watch support, and multi-device sync, users can easily and reliably protect their accounts.

📊 Productivity
(12)
17
Authenticator App ‘
Authenticator App ‘
Authenticator App ‘
Two factor authentication, 2fa
Free

An app for two-factor authentication that generates codes to secure online accounts without the need for login, simply by scanning QR codes. Protect your accounts easily and without hassle.

🔧 Utilities
(270)
18
Microsoft Authenticator
Microsoft Authenticator
Microsoft Authenticator
Protects your online identity
Free

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.

📊 Productivity
(652K)
19
Authenticator App +
Authenticator App +
Authenticator App +
Authentication App, Copilot
Free

Enhance your online security with an advanced account authentication and password management tool featuring an AI Copilot. Protect your accounts, detect phishing websites, and manage passwords securely and efficiently. Get started now to safeguard your privacy.

💼 Business
(1.2K)
20
BlazeAuth - MFA Authenticator
BlazeAuth - MFA Authenticator
BlazeAuth - MFA Authenticator
Two-Factor Authentication Code
Free
🔧 Utilities
(79)