Hi there,
I see you would like an Android app to run on Android tablet for your daycare business to check in and check out employees, customers, and visitors using google sheet for the cloud backend.
I’ve had a look and there is a Google Sheets API that we should be able to use to make your app work.
If you would like to proceed with me, we will need to discuss in detail your exact requirements to make sure I can do everything you want within budget.
I look forward to hearing back from you.
Cheers,
Chris