If you'd also be interested in an app that's not specifically about health but can also keep track of exercise etc and that keeps track of what is correlated with you being happy and efficient in the future, maybe you'd be interested in ActivityRecommender?

Android: https://play.google.com/store/apps/details?id=com.mathjeff.ActRec

iOS:

https://apps.apple.com/us/app/activityrecommender/id1505082122

Source:

https://github.com/mathjeff/ActivityRecommender

I'm super happy to talk more about it if it sounds interesting