Tap a name at the door. See 9 classes left.
No schedule, booking or payments: just your regulars, their classes left and one tap.
Try the check-inThis is a trial on a made-up studio, so every client and class here is fictional.

One tap as they walk in
Ana is in · 9 left. Tapped twice in the rush? Still 9. Tapped the wrong person? Undo gives the class back.
No classes left? Nothing comes off
The check-in is refused and nothing changes, so you can mention the next pack quietly instead of finding out weeks later.