For many years, this was my go-to Authenticator app. Unfortunately, it hasn't been updated in a while, and I can no longer recommend it. Nominally, it still works, but many of the features, like biometric authentication, are now buggy, and it has problems crashing on my Pixel 6. One area where Authenticator Plus was awesome is the Wear OS support. If you are looking for a similar app with Wear OS support, I'd recommend Authenticator Pro. If you are a current user, unfortunately, the export features stopped working after Android 10, so you have to manually extract the data from the authplus.db file to migrate to a new program. If you search for "extract authplus.db", you can get instructions on how to do this, and someone even created a containerized solution to convert the authplus.db to an andOTP file.