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.
They released a Chrome and Edge extension to support 3rd party browsers about a year ago. I have never tried it but I noted it lets you be cross platform with the password feature.