https://www.repth.com, an AI cycling coach that I vibe-coded back when gpt-3.5 was hot and vibe coding wasn't yet a thing. We've come a long way!
Free for athletes, but I license the underlying "coach" logic to actual, human coaches.
Congrats. This sounds like a great way to build a "wrapper" product. Gather clean data on a particular niche and keep it in one place. Have something that's good at processing that data. No matter what "startup killers" the big boys release, it's still resilient and valuable.
Neat! We made a similar thing years ago in the pre-AI era, with strong focus on detection of how the planned workouts were executed rather than making plan adjustments just on a single scalar metric (e.g. TSS). Didn't really go anywhere unfortunately.
https://www.kickstarter.com/projects/1725424103/summit-train...