Totally agreed. There are too many problem of using computer vision. Camera angle, lightening and even the cloth you wear will make the differences. End of day people just want to do workout instead of finicking with technology.
Great feedback. We are not in the VOD business since it's just too competitive and there are a lot of great free contents on Youtube already. Fitness+ is only using Apple Watch.
Check out Mixpose https://mixpose.com/ . It's a livestream yoga app on iOS,Android and Web with 3+ live classes a day. Since it's live the instructor can correct your form when you have hard time doing it. Eventually we are going to turn on the AI pose tracking. Disclaimer: I am the co-founder so let me know if you have any question.