Best Authenticator Apps for Android and iOS

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Best Authenticator Apps for Android and iOS

Two-factor authentication is a must-have security feature these days, as it adds an extra layer of protection to accounts from hackers. However, recently a number of fake authenticator apps appeared on app stores attempting to scam users. We've reviewed the top authenticator apps to choose from.

What is two-factor authentication?

Two-factor authentication requires two separate pieces of identifying information to log into an account. This usually includes something you know, like a password, combined with something you have, like an authentication code from an authenticator app on your phone. It helps prevent account takeovers even if a password is compromised.

Why TOTP Apps Are Better Than SMS-Based 2FA?

SMS-based two-factor authentication is less secure due to risks like SIM swapping attacks hackers use to steal codes. SMS codes also require a working cellular or internet connection, which can cause issues during outages or no signal.

Time-based One Time Passwords (TOTP) generated by authenticator apps avoid these problems as they work offline once configured. To set up, simply scan an account's QR code - the app will then display authentication codes when needed. All you need is the app, providing greater convenience and reliability than SMS.

Best Authenticator Apps for Android and iOS

Aegis Authenticator


Aegis Authenticator


Aegis has a clean, easy interface without requiring personal details. It includes secure backup of profiles, restoring them when switching phones through encrypted files optionally synced to Google Drive. Enable fingerprint/face unlock for extra security. Aegis is open source, free and highly recommended for Android.


Link: Aegis Authenticator - Secure 2FA app for Android

Google Authenticator


Google Authenticator


Google Authenticator is popular due to its simplicity. However, the Android version lacks password protection while unlocking codes. Surprisingly, its iOS counterpart can require Face ID/Touch ID when enabling privacy screen in settings.




Microsoft Authenticator


Microsoft Authenticator

Offers passwordless login via number matching between devices. It also syncs passwords, but cannot export tokens to other apps.




Microsoft Store: Microsoft Authenticator - Microsoft Apps

Raivo OTP


Raivo OTP


For iOS, Raivo has a minimal clean design. It allows importing profiles from other authenticator apps by scanning QR codes, handy for moving tokens between platforms.

Link: Raivo OTP. Simply the best authenticator

Bitwarden Password Manager


Bitwarden Password Manager


Includes 2FA functionality, though locked behind a paid subscription. Premium also enables hardware security key support for stronger authentication.

Link: The password manager trusted by millions | Bitwarden

KeePass Password Manager


KeePass Password Manager


Supports TOTPs, working as an alternative for desktop. Companion apps on Android and iOS maintain this functionality on mobile.

In summary, these multiplatform authenticator apps provide secure, convenient two-factor authentication by generating TOTPs offline through a consistent interface. Choose based on your needs and platform.

FAQ

Why is two-factor authentication important?

Requiring a second factor of authentication makes it much harder for hackers to access accounts even if they know the username and password. Hackers would need access to both your password and authentication device. 2FA protects not just individual accounts but sensitive data and financial accounts.

How do I set up two-factor authentication for my accounts?

Nearly all major online services now offer 2FA setup via your account security settings. Look for an option to "enable two-factor authentication" and follow prompts to scan a QR code with your authenticator app of choice. Make sure to save or back up recovery codes.

Which authenticator apps are most trusted and user-friendly?

Google Authenticator and Microsoft Authenticator are the most trusted and easy to use. Aegis is also highly regarded, especially for its ability to back up codes. Raivo is a good free option for iOS users. All are available across Android and iOS.

Do authenticator apps work without an internet connection?

Yes, that's one advantage over SMS-based 2FA. Authenticator apps generate one-time codes locally on your device without requiring internet once set up. This makes them reliable for approving logins anywhere, even without cellular service.

What if I lose my phone?

Be sure to save or print recovery codes provided during initial 2FA setup. These can be used to regenerate authentication codes on a new device if your phone is lost. You may also be able to restore backed up codes from authenticator apps like Aegis.

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