I no longer recommend this app. I got a new phone. I installed the Authenticator app. Added my accounts. The codes do not work. I made sure my date/time are set to automatically update, I uninstalled and reinstalled the app twice, and nothing I've tried has worked. Additionally, when looking for support, I was directed to a forum where many have asked the same question, but no solutions have been provided, and there seems to be no way to ask someone at Microsoft to help with this. AVOID!!!