OneBookPlus
8.0#1 in tutoring center softwareFrom A$29 a monthFree planAndroidiOSWebAPI
VisitYou want what its maker publishes above — check its page for the details.
TutorOne suits tuition-centre owners and small teaching teams needing attendance, fees, tests and parent access in one system. Its stated scale is an owner, a few teachers and a few hundred students.