Best Free 2Fa App

250+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our free 2fa app list covers 250+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Free 2Fa App (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoSep 2026
22FA Authenticator (2FAS)2FA Authenticator (2FAS)Free4.7★ (35K)NoNoSep 2026
3Authenticator app - 2FA, MFAAuthenticator app - 2FA, MFAFree4.6★ (5.7K)NoYesSep 2026
4Authenticator App - 2FA / OTPAuthenticator App - 2FA / OTPFree3.9★ (12)YesYesSep 2026
5Quick2FAQuick2FAFreeNoMay 2026
6Authenticator: 2FA Authy & MFAAuthenticator: 2FA Authy & MFAFree5.0★ (1)NoYesSep 2026
7Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (690K)NoNoSep 2026
8Duo MobileDuo MobileFree4.9★ (2.2M)NoNoSep 2026

Top Picks for Free 2Fa App

Google Authenticator#1

Google Authenticator by Google

Editor's Choice
🔧 Utilities
4.9😞(1.2M 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
2FA Authenticator (2FAS)#2

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

#1 Rated 2FA Authenticator
Strong Contender
📊 Productivity
4.7😊(35K 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
Authenticator app - 2FA, MFA#3

Authenticator app - 2FA, MFA by Maxima Apps

Two Factor Authentication, OTP
Worth Considering
🔧 Utilities
4.6😐(5.7K ratings)
FreeIn-App Purchases
Authenticator app - 2FA, MFA screenshot 1
Authenticator app - 2FA, MFA screenshot 2
Authenticator app - 2FA, MFA screenshot 3
Authenticator app - 2FA, MFA screenshot 4
Authenticator app - 2FA, MFA screenshot 5
Authenticator app - 2FA, MFA screenshot 6

This app provides secure two-factor authentication for over 1000 popular online accounts. It offers quick access via widgets and Apple Watch, and ensures your data is safe with no internet exchange. Easily set up accounts by scanning QR codes or entering secret keys.

What We Love

  • 🚀 Easy to use
  • 🔒 Secure authentication
  • 👍 Reliable and works well
  • 🚀 Quick and efficient

Room to Improve

  • 🐛 Bugs and glitches
  • 💰 Expensive or hidden fees
  • 🤯 Confusing setup and usage

More Free 2Fa App apps to explore

4
Authenticator App - 2FA / OTP
Authenticator App - 2FA / OTP
Authenticator App - 2FA / OTP
Two-Factor Login & Secure MFA
Free

This app provides secure two-factor authentication (2FA) and multi-factor authentication (MFA) by generating time-based one-time passwords (TOTP) for online accounts. It offers encrypted backups, cloud sync, and QR code support for easy account management across multiple devices.

Secure 2FA/MFA code generationEncrypted backup and cloud syncQR code account addition
📊 Productivity
(12)
free with in-app purchases
5
Quick2FA
Quick2FA
Quick2FA
by ZedCubed LLC
Free
🔧 Utilities
(0)
6
Authenticator: 2FA Authy & MFA
Authenticator: 2FA Authy & MFA
Authenticator: 2FA Authy & MFA
Two Factor Authentication: OTP
Free

Secure your online accounts with this two-factor authentication app. It generates one-time passwords (OTP) and time-based one-time passwords (TOTP) for secure logins and multi-factor authentication (MFA). Protect your data from unauthorized access with a user-friendly interface and offline support.

Generate TOTP & OTP codesSecure and fast login with MFAAccount protection from hackers
🔧 Utilities
(1)
free with in-app purchases
7
Microsoft Authenticator
Microsoft Authenticator
Microsoft Authenticator
Protects your online identity
Free

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.

Multi-factor authentication (MFA)Passwordless sign-inPassword autofill
📊 Productivity
(690K)
free
8
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
9
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
🔧 Utilities
(53K)
free
10
Authenticator App - Auth Code
Authenticator App - Auth Code
Authenticator App - Auth Code
2FA Authentication - OTP Token
Free

Enhance your online security by generating secure one-time passwords for social media, email, and crypto wallets. This app offers a fast QR code scanner, biometric security, and works offline. It also includes a robust password manager and strong password generator.

Time-based One-Time Passwords (TOTP)Lightning-Fast QR Code ScannerSecure iCloud Backup & Sync (PRO)
🔧 Utilities
(1)
freemium
11
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Backup,Transfer & Protect Code
Free

This app helps you securely manage two-factor authentication (2FA) and one-time password (OTP) codes for all your accounts. It offers features like code preview, secure data backup and transfer, and a password vault for enhanced digital security.

Manage 2FA and OTP codesPreview upcoming authentication codesSecure password vault
🔧 Utilities
(1)
free with in-app purchases
12
Safe Access 2FA
Safe Access 2FA
Safe Access 2FA
Enhance Your Security
Free
🔧 Utilities
(0)
13
Authenticator - 2FA/MFA
Authenticator - 2FA/MFA
Authenticator - 2FA/MFA
TOTP Authentication: 2 factor
Free

Enhance your online security with this user-friendly app that generates time-based one-time passwords (TOTP) for two-factor authentication. Securely manage codes for popular services by scanning QR codes or importing existing data. Offers iCloud sync and biometric protection for easy access across devices.

Generate secure 2FA codesSync accounts with iCloudBiometric authentication (Face ID/Touch ID)
📊 Productivity
(2)
free with in-app purchases
14
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
15
Authenticator App: 2FA & MFA.
Authenticator App: 2FA & MFA.
Authenticator App: 2FA & MFA.
Two Factor Authentication OTP
Free
🔧 Utilities
(0)
16
NIB 2FA
NIB 2FA
NIB 2FA
NIb's IB 2FA application
Free

This app provides a secure way to authenticate users, offering both online and offline capabilities. It allows for managing multiple user profiles, setting PINs, and updating user information.

Offline/online user authenticationUser profile managementAdd/remove multiple users
💰 Finance
(2)
free
17
Authenticator App :2FA, MFA
Authenticator App :2FA, MFA
Authenticator App :2FA, MFA
Authentication & Verification
Free

Securely protect your online accounts with time-based one-time codes. Easily add services via QR code or manual entry to generate verification codes locally. Back up and restore your data for seamless device transitions.

Secure 2FA & MFA code generationTime-based one-time passwords (TOTP)QR code and manual setup
🔧 Utilities
(12)
subscription
18
Authenticator App: SecureGuard
Authenticator App: SecureGuard
Authenticator App: SecureGuard
2FA,MFA, Protect Your Accounts
Free
📊 Productivity
(0)
19
authenticator app pro
authenticator app pro
authenticator app pro
2FA Authentication Code
Free
🔧 Utilities
(0)
20
Authenticator App - Authy, 2FA
Authenticator App - Authy, 2FA
Authenticator App - Authy, 2FA
Duo Authy Authenticator App
Free

This app securely manages and generates two-factor authentication codes for numerous online services. It offers seamless cross-device syncing via iCloud and a native Apple experience with features like Dark Mode and biometric unlock. Easily import existing accounts and enjoy lifetime access with a one-time payment.

Secure 2FA code generationCross-device iCloud syncNative Apple experience
📊 Productivity
(4)
free with in-app purchases

FAQ about Free 2Fa App

What is the best free 2fa app for iPhone?
Google Authenticator tops our free 2fa app ranking as of September 2026, with a 4.9-star average from 1.2M App Store ratings, and it's free to download.
Google Authenticator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ free 2fa app on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Google Authenticator adds an extra layer of security to your online accounts by generating a second verification code needed to sign in, in addition to your password. This code is generated on your phone.
You can set up your Authenticator accounts automatically by scanning a QR code provided by the service you wish to secure. This is a quick and easy process that ensures correct setup.