PowerCoach is a SaaS tool I develop for strength training coaches and athletes that is actually enjoyable to use. Besides the block based programming, advanced analytics, built-in messaging it has advanced computer vision algorithms that analyze your rep speed, which provides yet another dimension to track one’s progress. It’s used by coaches in production, features an advanced, custom, offline-first syncing algorithm with truly native apps on Android and iOS as well as a modern web interface.
Check it out at https://powercoach.fi