Top 10 Best Two-Factor Authentication Apps To Download in 2021

Download these best two factor authentication apps to get a more secure way to log into your sites and web services.
Last Updated on :
October 27, 2021
Two factor authentication Apps
With the rising leaks and hacks of social media accounts and online bank accounts, it has become important to come up with a way to add an additional layer of protection. This is where two-factor authentication apps come to play. Authenticator apps, such as Authy, Google Authenticator, or Microsoft Authenticator, enable one of the more-secure forms of 2FA. Using one of these apps can even help protect you against stealthy attacks.

Our Top Picks

In this blog, we are discussing a few most popular two-factor authentication apps to keep your devices and personal accounts more secure.

Best Two-Factor Authentication Apps for Android and iOS

Here’s a list of the best 2fa apps that you can download for both Android and iOS. Check out below:


Apple 4.7
android 3.9

Authy comes packed with just about every feature you can think of for an app like this. Its cloud backup is secured by an SMS-based 2FA system and a password, allowing you to seamlessly sync your OTP codes across multiple devices. The app also comes with offline support and supports most  popular websites and account types. It is totally free to use with no in-app purchases and advertisements. 

Top features of Authy

  • Secure cloud backups
  • Offline support
  • Multiple device synchronization
  • Protects your bitcoins
Download this app

Google Authenticator

Apple 2.2
android 3.9

Google Authentication is arguably the most popular two-factor authentication app. Some of its notable features include Wear OS Support, a dark theme, and offline support. If you switch phones, you can use a QR code to move your credentials without any hassle. It works with many providers and accounts and is completely free to use.

Top features of Google Authenticator

  • Generate verification codes without internet 
  • Compatible with many providers and accounts
  • Dark theme support
  • Automatic setup via QR code
Download this app

LastPass Authenticator

Apple 2.5
android 3.6

LastPass works seamlessly across all of your devices and browsers. The app supports 6-digit generated passcodes, SMS codes, and automated push notifications for one-tap login. It also keeps all your accounts and codes backed up in the cloud. 

Top features of LastPass Authenticator

  • Generates six digit code every 30 seconds Push notifications for one tap approval Automated setup via QR code Add multiple accounts
Download this app

Duo Mobile

Apple 2.1
android 2.9

Duo’s security services mainly focus on businesses. It offers  enterprise features such as multi-user deployment options and one-tap push authentication. It supports a wide variety of third-party accounts. Plus, the setup is simple and swift. You can back up Duo Mobile using Google Drive for Android and using iCloud KeyChain on iPhone.

Top features of Duo Mobile

  • Make logins more secure
  • Receive notifications for easy one tap login
  • Use it for apps and web services that make use of passcodes
  • Add third-party accounts anytime
Download this app
hype your product on mobileAppDaily

With our strategically designed marketing solutions


Microsoft Authenticator

Apple 4.8
android 4.7

With Microsoft Authenticator, you can generate secure passwords and log in to Microsoft accounts with a button press. One of the prominent features of Microsoft Authenticator is Account Recovery. So, if you switch to a new phone and you install this app, you’ll see an option to recover by signing into your Microsoft account. You also get additional account management options for your Microsoft personal, work or school accounts. The app is free to use with no ads or in-app purchases. 

Top features of Microsoft Authenticator

  • It autofills passwords for you
  • OTP doesn’t require you to be connected to a network
  • Add multiple accounts to your app
  • Import passwords from other password managers
Download this app

2FA Authenticator

android 4.8

2FA Authenticator is an excellent choice for six digit TOTP authentication. Using this app, you can add your secret key manually or via QR code if you like. It supports dark mode and offers customization options as well. 

Top features of 2FA Authenticator

  • Compatible with Twitter, Facebook, Amazon, and more
  • Supports dark theme
  • Offers backup feature
  • Get customization options
Download this app

TOTP Authenticator

Apple 4.7
android 4.2

It is a super basic and effective TOTP authentication app. Apart from the basic features, TOTP Authenticator comes with a dark theme, widgets, fingerprint scanner support and cross-platform support with iOS and Chrome. With cloud syncing, you can easily backup your 2FA accounts to your own Google Drive. This keeps you in control of your data while providing effective cloud backup.

Top features of TOTP Authenticator

  • Back up your 2FA accounts easily
  • Enjoy the dark mode
  • Inbuilt search feature
  • Multi-platform support
Download this app


Apple 4.5
android 4.1

1Password is one of the most popular 2FA apps that remembers all your passwords for you and keeps them safe and secure using the one password that only you know. You can access your information on all your mobile devices and computers. It is the ideal place for financial information, personal documentation, or anything you need to keep secure and accessible.Additionally, it uses end-to-end encryption. 

Top features of 1Password

  • Store information in a dozen categories
  • Unlock the app quickly and securely with Fingerprint Unlock
  • Easily migrate information between accounts
Download this app


Apple 3.1
android 3.9

FreeOTP Authenticator works with most popular accounts, including Facebook, Google, and many others. You also get support for productivity sites like GitHub. It also boasts support for businesses as long as they support TOTP and HOTP. It is open source and free software.

Top features of FreeOTP

  • It is a free app
  • It is open source
  • Works with popular accounts like Facebook and Google
Download this app

Aegis Authenticator

android 4.7

It is a free and open source app to manage your 2-step verification tokens for your online services. This app supports  HOTP and TOTP algorithms, which are industry standard and widely supported. You can also back up your account and export to a new device and import from Authy and andOTP as well.

Top features of Aegis Authenticator

  • Free and open source
  • Secure
  • Compatible with Google Authenticator
  • Material design with multiple themes
Download this app
publish unbiased & detailed reviews

That Promote Your Product's USPs

So these are a few 2FA apps that can help you add an extra layer of security. These apps do help prevent hackers from having their way with your stuff. Now, if you have any app and you want to get your app reviewed as well, you can contact MobileAppDaily. It will give your app a marketing platform. Moreover, you will also get to know if your mobile app lacks anything.

Written By
Pallavi Content Head at MobileAppDaily

She is an avid writer of technology and trending mobile apps. When she is not busy updating you about the tech world, she spends time reading books and playing guitar.

Bag relevant views, higher downloads & real shares for your app

MAD Originals
MAD Originals

Cut to the chase content that’s credible, insightful & actionable.

Get the latest mashup of the App Industry Exclusively Inboxed

  • BOTH
Join our expansive network, build connections and expand your brand presence.