App for selling subscription to training programs only

I read everything i could for the past days about these app and tried most of them on free trial. I want an app where I can make programs and update them every month in a large group setting. The idea is to sell subscriptions to the different programs. Eventually I would like to be able to add-on some extra programs, so they can buy acces to two programs at the same time: One for Strength training the other their "sport-specific exercises" / drills for their sport etc.

Most important: Userfriendly for the athletes

Other nice to have:
Easy for me to build periodized plans,
can connect with stripe (because my 1:1 coaching clients pay through this)
community site
ability to create my own video instructions
Cheap-ish/low starting cost

Trainheroic seems right now as the best fit, but im not completely satisfied with what I get, and it seems like I cannot for example remove the questionaire in the beginning of each workout or exchange it with something more relevant for my niche.