When comparing Authy 2-Factor Authentication vs Google Authenticator, the Slant community recommends Authy 2-Factor Authentication for most people. In the question“What are the best TOTP / 2-factor authentication apps for Android?” Authy 2-Factor Authentication is ranked 1st while Google Authenticator is ranked 4th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Cloud synchronization
Pro Secured by pin
Pro Clean UI
Pro Works off-line
Pro Supports lots of applications and sites
Pro Simple and straightforward
All you do after installing is log in with your Google account, and then you can add almost any account (that supports 2-factor authentication of any kind) quickly.
Pro Works offline
The app requires an internet connection to set up, but once that's done, you can disconnect from wifi entirely and it will still work.
Pro Storage efficient
Uses less than 20 mbs.
Pro The first app of this kind
Cons
Con Had a data breach in August of 2022
See here.
Con Requires a phone number to setup
Con Too basic
If you have over 10 TOTP secrets, it gets really complex to track them as there are no folders or categories or labels or images