Authy
Free
Authy helps you set up and manage two-factor authentication (2FA) on websites.
Keepass2Android
Open Source
Keepass2Android is an open source password manager application for Android.
andOTP
Open Source
An open-source android authenticator app.
Compare Google Authenticator with alternatives
Compare Authy and Google Authenticator and decide which is most suitable for you.
Compare andOTP and Google Authenticator and decide which is most suitable for you.
Compare Keepass2Android and Google Authenticator and decide which is most suitable for you.