Best Atonline Auth Apps

226+ iOS apps curated and reviewed

4.0 avg rating

20 free apps

Updated May 2026

Whether you're new to atonline auth or looking for an upgrade, our curated collection of 226+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Atonline Auth

#1

AtOnline Auth by Karpelès Lab Inc.

Secure 2FA Authenticator

Editor's Choice

🔧 Utilities

0.0(0 ratings)

Free

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#2

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

#1 Rated 2FA Authenticator

Strong Contender

📊 Productivity

4.7😊(34K ratings)

Free

2FA Authenticator (2FAS) screenshot 1

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2FA Authenticator (2FAS) screenshot 3

2FA Authenticator (2FAS) screenshot 4

2FA Authenticator (2FAS) screenshot 5

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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

#3

OneLogin Protect by OneLogin, LLC

Worth Considering

💼 Business

2.0😞(561 ratings)

Free

OneLogin Protect screenshot 1

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This app provides enterprise-ready multi-factor authentication for your online accounts. It offers secure two-factor authentication for OneLogin SSO and thousands of third-party services, enhancing your digital security with push notifications and time-based one-time passwords.

What We Love

👍 Easy to use
🔒 Secure authentication
🚀 Efficient push notifications
💡 Apple Watch support

Room to Improve

🐛 Frequent crashes
🔑 Difficult account recovery
🔒 Overly restrictive security

More Atonline Auth apps to explore

Authenticator app - 2FA, MFA

Authenticator app - 2FA, MFA

Two Factor Authentication, OTP

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.

Two-factor authentication (2FA)Multi-factor authentication (MFA)Supports 1000+ apps

free with in-app purchases

UR Portal authentication

This secure dual-authentication app generates instant, temporary verification codes to enhance user account protection for government e-services. It aims to bolster online account security and prevent unauthorized access attempts.

Secure dual-authentication (2FA)Generates instant, temporary verification codes (OTP)Enhances user account protection for government e-services

RSA Authenticator (SecurID)

RSA Authenticator (SecurID)

by RSA Security

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)

Authenticator ® App

Authenticator ® App

Two Factor Authentication Aрр

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

📊 Productivity

free with in-app purchases

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

Aura: Security & Protection

Aura: Security & Protection

Identity, Credit & Asset guard

This app offers comprehensive digital safety, protecting against identity theft, fraud, and online threats with AI-powered monitoring and alerts. It secures online activity, reduces spam, and helps manage credit and passwords for peace of mind.

AI-powered identity and credit fraud alertsSecure VPN with malicious website blockingSpam and robocall reduction

free with in-app purchases

Authenticator App

Authenticator App

2FA Authentication MFA & OTP

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

📊 Productivity

Ente Auth - 2FA Authenticator

Ente Auth - 2FA Authenticator

Secure sync across devices

This app generates and securely stores two-step verification (2FA) tokens. It offers end-to-end encrypted cloud backups and seamless multi-device synchronization, ensuring your tokens are accessible across all your devices. Access your tokens via a web interface or generate them offline.

End-to-end encrypted cloud backupsMulti-device synchronizationWeb access to tokens

Authenticator App - Authkey

Authenticator App - Authkey

Two factor authentication, 2fa

Enhance your online security with this app, offering a secure and reliable method to protect your accounts. It generates unique codes for two-factor authentication, ensuring your personal information stays safe.

Account protection with 2FAEasy setup and managementBackup and sync accounts

free with in-app purchases

1Password: Password Manager

1Password: Password Manager

Save & share passwords safely

Securely store, generate, and autofill passwords and passkeys across all your devices. This app also manages other sensitive information like credit cards and notes, with features for secure sharing and travel.

Generate strong passwordsAutofill loginsTwo-factor authentication codes

📊 Productivity

Entrust Identity

Entrust Identity

This app delivers strong identity credentials for employees and consumers, offering authentication and transaction verification. It also provides advanced password reset capabilities for employees, simplifying IT management and enhancing security.

Strong identity credential deliveryAuthentication and transaction verificationAdvanced employee password reset

OT Advanced Authentication

OT Advanced Authentication

by NetIQ Corporation

Enhance security beyond traditional passwords with multifactor authentication. Protect sensitive data from fraud and unauthorized access with advanced verification methods.

Multifactor authenticationSecure sensitive informationStep-up protection

Multi-Factor Authentication

This app generates time-based one-time passwords for multi-factor authentication. It supports iCloud sync for seamless access across devices and offers quick code copying. It also recognizes TOTP QR codes for easy setup.

Time-based one-time password generationiCloud Sync for multi-device accessTap to copy authentication codes

free with in-app purchases

SecureAuth Authenticate

SecureAuth Authenticate

by SecureAuth Corporation

This app verifies your identity to securely access personal and work applications. It supports multi-factor authentication by generating one-time passcodes for two-factor authentication flows. It offers features like push notifications and offline code generation.

Multi-factor authentication (MFA)Generates one-time passcodes (OTP)Supports multiple accounts

Authenticator App－2FAS・MFA・OTP

Authenticator App－2FAS・MFA・OTP

Two Factor Authentication・TOTP

Enhance your online security by generating time-based one-time passcodes for two-factor authentication. Securely manage multiple accounts with effortless setup, biometric integration, and cloud backups. Enjoy a sleek interface with cross-device syncing for ultimate convenience.

Multiple account supportQR code scanning for setupFace ID/Touch ID integration

free with in-app purchases

Google Authenticator

Google Authenticator

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.

Offline code generationSync codes across devicesAutomatic QR code setup

Proton Authenticator

Proton Authenticator

Secure 2FA Authenticator

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

End-to-end encrypted iCloud syncEffortless import from other authenticatorsSecure backup and export

📊 Productivity