When comparing Google Authenticator vs Aegis Authenticator, the Slant community recommends Aegis Authenticator for most people. In the question“What are the best TOTP / 2-factor authentication apps for Android?” Aegis Authenticator is ranked 3rd while Google Authenticator is ranked 4th. The most important reason people chose Aegis Authenticator is:
Also available in F-droid.
Ranked in these QuestionsQuestion Ranking
Pros
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
Pro Open-source
Also available in F-droid.
Pro Icon Pack
You can use icon packs to make app more interactive.
Pro Android Cloud Backups
Allows Android's cloud backup system to include aegis vault in its backup.
Pro Separate password for Export Decryption
You can choose a separate password to decrypt you exports, to improve your security.
Pro Encrypted import/export
Pro Account icon choice
You can choose an image or icons from an icon pack for your accounts, making it easier to look clean and consistent.
Cons
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