Best Transaction Authentication App

229+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated June 2026

With an average user rating of 4.0★, the transaction authentication app category is one of the App Store's strongest. Browse all 229+ apps we track, sorted so the most loved ones surface first.

Top Picks for Transaction Authentication App

Authenticator App†#1

Authenticator App† by Appqe LLC

2FA Authentication MFA OTP
Editor's Choice
🔧 Utilities
4.5😞(1.8K ratings)
FreeIn-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

This application provides secure two-factor authentication for enhanced account protection. Easily set up and manage verification codes for your accounts with this powerful tool. Download now for enhanced security!

What We Love

  • 🚀 Fast and smooth app
  • 🔒 Puts confidence in data security
  • 👍 Great app overall

Room to Improve

  • 🐛 Removed accounts after update
  • 🐛 Deleted authentication codes
  • 🐛 QR code scanning issues
Authenticator App +#2

Authenticator App + by Accebits Tech Limited

Authentication App, Copilot
Strong Contender
💼 Business
3.4😞(1.2K ratings)
FreeIn-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

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.

Room to Improve

  • 💰 Paid subscription required
  • ⚠️ Deceptive advertising
  • 🚫 Doesn't work as expected
Microsoft Authenticator#3

Microsoft Authenticator by Microsoft Corporation

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

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

  • 🚀 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 Transaction Authentication App apps to explore

4
Authenticator™ App
Authenticator™ App
Authenticator™ App
Authenticator App
Free

Securely set up your accounts with Authenticator™ App using QR codes for quick and error-free setup. Backup your data with iCloud for added security and convenience. Get started now to simplify your authentication process.

🔧 Utilities
(239)
5
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)
6
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)
7
Authenticator ℠ App
Authenticator ℠ App
Authenticator ℠ App
2FA, Two Factor Authentication
Free
🔧 Utilities
(3.9K)
8
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.

🔧 Utilities
(33K)
9
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)
10
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Free
🔧 Utilities
(53)
11
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)
12
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)
13
Authenticator App ©
Authenticator App ©
Authenticator App ©
2FA: Two-Factor Authentication
Free

An easy-to-use 2FA Authenticator app that enhances the security of online accounts by generating one-time passwords for two-factor authentication. Simply scan QR codes to set up 2FA instantly for services like Google, Facebook, and more, ensuring secure logins without the need to remember multiple passwords.

📊 Productivity
(538)
14
RapidIdentity App
RapidIdentity App
RapidIdentity App
by Identity Automation, LP
Free

Secure your logins with the RapidIdentity Mobile Application. Use Push and Time-based One-Time Passcode (TOTP) authentication methods to enhance security without passwords, supporting various apps like Gmail, LastPass, and more. Protect your codes with a PIN or Touch ID for added security. Upgrade now for seamless authentication.

📊 Productivity
(639)
15
BlazeAuth - MFA Authenticator
BlazeAuth - MFA Authenticator
BlazeAuth - MFA Authenticator
Two-Factor Authentication Code
Free
🔧 Utilities
(2.1K)
16
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/

💼 Business
(140)
17
Smart Log On
Smart Log On
Smart Log On
Passwordless Authentication
Free

This passwordless authentication application provides secure log-ons using behavioral modeling and multi-factor authentication, analyzing each log-on and transaction in real-time to prevent unauthorized access. Experience enhanced identity protection and take control of your security with a cutting-edge authentication solution.

💼 Business
(26)
18
Authenticator
Authenticator
Authenticator
Authentication for Google
Free

Authhy Authenticator is a two-factor authentication app that boosts online account security. Easily set up without login, just scan QR codes to add accounts. Compatible with thousands of websites and services. Download for enhanced security!

📊 Productivity
(325)
19
Authenticator App ∞
Authenticator App ∞
Authenticator App ∞
2FA, Two Factor Authentication
Free

The Authenticator App is a powerful security tool that enhances the protection of your online accounts with two-factor authentication (2FA) and a suite of advanced features. This app securely generates and manages 2FA codes, offers comprehensive security measures, and provides seamless device synchronization, ensuring continuous protection for your sensitive information.

📊 Productivity
(205)
20
Authenticator app - 2 MFA, OTP
Authenticator app - 2 MFA, OTP
Authenticator app - 2 MFA, OTP
AKA: Two factor authentication
Free

Introducing our new Authenticator app for iOS, a two-factor authentication utility to secure your online accounts easily without login. Lock data with strong passwords, use Face ID, enjoy multi-sync across devices, and rest assured with secure backups. Download now for privacy-first protection!

🔧 Utilities
(528)