I built fitness app for my mum
Fitbit Bingo revival with virtual pets that grow as you exercise, 50k users already.

Pays athletes to fake your fitness metrics—clever hustle, fundamentally dishonest product.
Professionals who want to appear healthier on wearable leaderboards without lifestyle changes.
Fitbit Bingo revival with virtual pets that grow as you exercise, 50k users already.
MCP server for wearables, but health data privacy concerns remain.
Yet another fitness tracker, but at least it's free and stores data locally.
Author admits dozens of fitness trackers exist — this one's just self-hostable.
Yet another fitness tracker with AI features, but Claude MCP integration is the only differentiator.
Uploads FIT files, groups identical routes and provides segment comparisons on interactive vector maps — the repo and docs point to htmx for UI snappiness and MapLibre/OpenStreetMap for mapping. Not trying to be Strava; it's a focused, self-hostable analytics tool with dev tooling (Nix, quick-start scripts) but limited social features and polish compared to mature commercial alternatives.