@Kelly_Carson Hi Kelly, about the number of users, our records indicate that you have quite a few guest users. Guest users are users who did not sign in, and thus could not be associated with a user email. As a result, the only way we can count guest users is to associate them with specific devices. This means that the same person who uses the app from 2 different devices without signing in will be counted as 2 guest users. Since you are on the Publish Plus plan, I assume that you shared your app with your users before turning on the sign-in requirement. During this period, a number of users must have been using the app as guest users from multiple devices, which would significantly increase the number of users counted.
Regarding the sign-in requirement, if you no longer want to enable this setting, you will be able to continue using your current plan. However, as I have explained before, you will also no longer be able to use the USEREMAIL expression. As a result, you will not be able to identify your reps by their emails, which means that you will not be able to limit each rep to only his/her own data. In other words, ever rep will be able to see not only their own accounts, but also accounts belonging to all other reps as well.
Regarding the number of team members, as I mentioned earlier, each member might be counted multiple times if they use multiple authentication providers. For instance, the same person who sign in to AppSheet from Google and Microsoft will be counted as 2 members. Also, after a quick look at your account, I could see that among your team members, there were 25 app creators and 95 app users. The email addresses of the all of the members counted share the same vivintsolar.com domain.