I use the totp generator included in Bitwarden. It would be more secure to have codes and passwords in different apps, but in Bitwardens case I don’t have a too bad feeling about it.

Never had trouble with Authy. Use it on iOS and android, and it’s straightforward and reliable, including when switching/setting up new devices.

That being said, no app can save you if you don’t have paper backups of those we codes. Stash em in your safe.

I’m using Raivo. It’s open source, supports iCloud sync (useful if you have multiple devices) and allows you to export and import the keys which is handy if you need to change your device and you don’t use iCloud synchronization.

You can also set custom icons for the tokens to easily identity different services.

I switched from mattrubin/Authenticator which worked fine too but the development slowed down. Not that simple OTP would require constant development. I just wanted to make sure that the app would work even if Apple releases new major iOS version.

Raivo has worked without any issues and I can highly recommend it 👍