The reschedule is the whole problem
A teaching week that goes exactly as planned needs no software. What software is for is the week that does not: a student off sick on Monday, a teacher's car failing on Wednesday, a school concert removing four lessons on Thursday, and a parent asking on Friday why the invoice looks different.
Each of those events has two consequences — one on the calendar and one on the money — and almost every tool handles only the first. The lesson gets moved, the billing implication is remembered by a human, and the accuracy of the month depends on how good that human's memory was under pressure.
Keeping attendance on the booking makes the second consequence automatic. Moving a lesson, crediting it, or marking it forfeited is one action with one outcome, which is why studios that consolidate usually report the month-end shrinking from a day to under an hour.



