Top 8 Two-Factor Authenticator Apps You Can Use on Android Devices in 2021

Two-factor authentication is a robust security tool that gives you an extra layer of security to your online accounts. It asks you to verify yourself every time you log into your account, so if anybody tries to hack your account, he will not only need a username and password but also a verification code. Hence, two-factor authenticator apps are very essential in order to make your online accounts secure. We have listed the top 8 two-factor authenticator apps that you can use on your Android devices. Here they are:

2FA Authenticator

2FA Authenticator is a pretty decent two-factor authenticator app that provides you with six-digit TOTP authentication in order to secure your accounts. The 2FA Authenticator app has a straightforward user interface, and it does its work very nicely. The app even allows you to add your secret key manually or through a QR code. It doesn’t include so many features, but you get a pretty clean UI and a decent user experience. You can use this app entirely for free.

Aegis Authenticator

Aegis Authenticator is another pretty decent two-factor authenticator application that is loaded with a bunch of features, including support for TOTP and HOTP methods. The app even lets you lock any app you want so that only you can open it. The app allows you access to a locked app only when you enter the correct PIN, password, or fingerprint unlock. The app also lets you do a variety of other stuff, such as making a backup of your account and export it to a new device, and more. The app is undoubtedly very great and available completely for free to use; you should give it a try.


The andOTP two-factor authenticator app is available entirely for free to use that has support for the TOTP protocol, multiple backup options, compatibility with Google Authenticator, and a dark mode. The app even features a straightforward user interface. It’s open-source and available for free to use. It works decently, but you will have to give the app some permission to access your device to make it more secure. The developers of this app have also mentioned the app’s permission details in the about section of this app, you can have a look at it if you want to.


Authy is an excellent two-factor authenticator app that works very similar to Google and Microsoft’s variants of two-factor authenticators. The app includes codes that you can use to authenticate your login. However, the Authy app comes with some other features as well, such as offline support, device syncing, and support for most popular websites and account types. The app is available entirely for free to use and the best thing about this app is that it doesn’t contain ads or in-app purchases.

FreeOTP Authenticator

FreeOTP Authenticator is another excellent two-factor authenticator app that is compatible with most popular accounts, including Google, Facebook, and several others. It even supports some productivity suites, including GitHub and more. The app even includes TOTP and HOTP protocols so you can even use it for business purposes as well if you want. The app works fantastically and is available entirely for free to use.

Google Authenticator

Google Authenticator is unquestionably one of the most popular and powerful two-factor authenticator applications. Due to this app’s authentication capabilities, Google itself recommends it for all of Google accounts. The app even works with other websites. Additionally, it supports Wear OS, a dark theme, offline support, and a variety of other things. Google Authenticator’s user interface is very neat & clean. The app works fantastically and is available entirely for free to use.

Microsoft Authenticator

Microsoft Authenticator is also a very popular two-factor authenticator app and it’s even considered the biggest rivalry of Google Authenticator. Well, Microsoft Authenticator works not only with Microsoft’s applications but also with a variety of other apps and online sites. Well, the Microsoft Authenticator app boasts a straightforward user interface so you won’t face any difficulties while using it. The app provides you with a unique code every time you visit any app or site, you just need to open the app, verify yourself and use the verification code to visit the desired site or app. It works very decently and is entirely available for free to use with no in-app purchases or ads.

TOTP Authenticator

TOTP Authenticator is a very decent two-factor authenticator app that provides you with a variety of tools, including a dark theme, multiple widgets, fingerprint scanner support, as well as cross-platform support for Google Chrome browser and iOS. The app even boasts cloud syncing, so it automatically uploads all your codes online, except token generation. The token generation always takes place on your devices, so your codes are secure. The app does all its work perfectly. You can use TOTP Authenticator for free, but there is a premium version of the app also available that will cost you up to $5.99 if you buy its subscription.

These are all the 8 two-factor authenticator apps that we recommend you to try on your Android device. They work fantastically and help you secure your online accounts. That’s all for this article. I hope you liked the content. Thank you for reading it. Have a great day!

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