The app itself is a great idea, but looking through the demo video I see lots of bad "tiger parent" memes. I don't think that I would want to force a child to do these sorts of tasks in a regimen, or be forced as a child to perform them.
The demo video (which does showcase the app well), includes things like chess and piano and homework. Does the child like doing any of these? Have you vetted the homework as worth the child's time?
Missing from the list are things that translate to adulthood, like physically training every day and performing useful tasks like chores in exchange for something like money.
You have to exercise as an adult even if you don't want to, it's part of the human condition. If you don't become accustomed to conditioning as an adolescent and only exercise through sports, it can be difficult to stay fit as an adult. You have to perform useful work because we live in a world of scarcity, but doing hobbies that don't interest you because they impress people or your parents told you to do them as a child is absolutely nuts.
I should add: I'm not criticizing your parenting decisions, obviously I have none of the relevant context, but I thought I would convey a sentiment that may exist in your market demographic, which you maybe don't share.