4 stars: I had problems in the past, but if I'm being honest, I was effing around with stuff on my phone. After factoring my phone and reinstalling it, (this process can be confusing and you need to remember to remove requiring the authenticator to log in to your account, BEFORE uninstalling it), it works like a charm. I use it to log into apps though my browser, phone, etc. I don't know what I would use if it went away. So don't go away.
3 stars: Works well for authentication, but don't be fooled about
3 stars: Pretty darned reliable, and remarkable in keeping things up to date ( compared to Google Password Manager). A missing feature: it doesn't restore all accounts from a backup; rather, it restores the main account and passwords. I've lost access to a Microsoft account, and if the backup would have restored all the accounts I had signed in on this application, I would have given it two more stars
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