Based on our record, Duo mobile seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Call me lazy but..for phone 2FA auth I'm using Duo in personal mode (TOTP). See guide.duo.com for a start. It's convenient and fast. My Yubikey is used for PC web 2FA and, no, I don't do any financials on mobile devices. Reason I picked Duo is Google Auth on Android had dings for not being secure (some say). BEWARE of Duo, if you try to buy they only sell in packs of 30 so that first bill could be... Source: almost 3 years ago
andOTP - andOTP is a two-factor authentication App for Android 4.4+
Microsoft Authenticator - One app to quickly and securely verify your identity online, for all of your accounts.
Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
Myki Authenticator - Login to any account on any device with your fingerprint
OTP Auth - The app for calculating one-time-passwords on iPhone and iPad.
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.