You should definitely be seeing some changes, I've written a few different parent guides on tuition, it's not necessarily because it's online but it does sound like that tutor isn't working for your child. Here's a bit from the guide:
Concrete signals: these matter. The student can do questions they couldn't before: quadratic equations, organic mechanism diagrams, structured essay paragraphs. Watchable, observable, repeatable. Past-paper marks on tutored topics are improving: track this; if the student was scoring 4/10 on quadratics questions and is now scoring 7-8/10, the tutoring is working on that topic. The student can explain the topic back without prompting: "How would you approach this question?" and they articulate the method. This is the strongest retention signal: real understanding survives the gap between sessions.
Soft signals: encouraging but not sufficientThe student talks about the subject at home unprompted. The student engages more confidently in school class. The student says they "feel more confident". The tutor says they're "making good progress".These are all positive but easily misleading.
- make sure confidence increases with competence as one alone isn't enough
For the online Vs In-person advice I've also written some guides on that but the summary is:
Online strength: Wider tutor pool, lower cost, no travel, and screen-share for written work
In-person strength : Stronger engagement for younger and restless students, easier exam-prep timing, and paper-based work that feels closer to exam
Common compromise : Younger and KS2 students in person; GCSE and A-level online; in-person final mocks before exams
Equipment for online : Laptop or desktop, headset and good audio, webcam, stable internet, quiet room, and ideally a graphics tablet for Maths
Cost difference : Online typically 10-20% cheaper than in-person at equivalent rates
Common online tools : Zoom, Google Meet, shared whiteboard (BitPaper, Lessonspace, Bramble), and screen-shared past papers