You should try one of nostr:npub1eln4r7kgp74ty4f70qcntu28lkfuxk7hflrsgewd7l3u7swj0exqrwz3pj sessions. The app is called SonicTonic 💙 https://apps.apple.com/de/app/sonictonic/id1057946205 
Discussion
I try to have one less app. I was on different Nike training, Wimm, and others. I now do it analog. Simple youtube video and in case I want to track I have a sheet to plug in numbers.