Come to think of it, it's a really cool idea - and I'd like to do it if I could justify the work involved, but if this app ends up just being for me and a dozen other people, maybe I should spend my time on Earth working on something that produces more value for people.

But let's say you study for thirty minutes each day for a month - 0.5hrs * 30days = 15 hours...

And maybe half of that time is your recordings, so 7.5 hours of recording... that's about 1gb of recordings a month...

So if you're a decent student who studies on average 30 minutes a day, that's 1gb of space on your phone a month... I have a fancy phone (that I'm not a big fan of, but that's another story), and it only holds 64gb. So your proposal is actually very doable... but it would need to be done thoughtfully... Especially if you're a diligent student and study for a number of hours each day...

Maybe that would be a way to support the app - hold the data on a paid cloud service or something for users to go to and check. I'd be happier with that than putting advertisements up.

Thanks for the good wishes!