What’s your prefer two-factor authentication app for iOS?
I'm looking for an app that offers the best combination of platform compatibility (preferably available on Mac OS, iPad OS, and iOS), security, usability, and reliability.
It would be great if the app is open source and has a backup feature as well.
Just so you know it’s also an iOS / iPadOS/ Mac system feature if you use safari no need for an app. Just open the password manager and add the otp code. Syncs with iCloud on all your devices.