All of the people coming into your BoosterHub system, either via an Admin entering their name in People (manually one-by-one, or by uploading a .csv file), or via a Registration Page, can be found in People > Pending Invitations.

Those specific Members who have come into your system via a Registration Page can be found by selecting Members Needing Approval in the dropdown menu. Once you approve them, their names are moved to Invited/Approved, to join the list of names of other Members coming into your system via Admins entering their names.

None of the Members in Invited/Approved have logged into BoosterHub yet. Once they accept their login and download the BoosterHub app, they will automatically advance out of Pending Invitations and will join all of your full Members in People.