6 GitHub Repos That Replace Your Fitness Apps
There is a free public repo for pretty much every fitness app we pay for. Paste the link into Claude Code and it installs it for you.

I went digging through GitHub this week and it turns out there is a free public repo for pretty much every fitness app we pay for. Somebody already built it and gave it away.
Paste the link into Claude Code and it'll install it for you.
Want to build your own? The 4-Week Fitness App Challenge teaches you to build the app or AI agent you always wanted, so you can improve your training, control your own data and learn AI along the way.
The 6 I found
Endurain: your own activity feed with maps, charts and friends, on a server you own. Replaces Strava.
NOOP: pairs with your WHOOP strap and scores recovery, strain and sleep on your phone, no membership. Replaces the WHOOP app (early Oura support too).
SparkyFitness: food, water, sleep and fasting tracking for the whole household. Replaces MyFitnessPal.
OpenGym: a full lifting log with 1,324 exercises built in, and it imports your Hevy history. Replaces Hevy.
GoldenCheetah: fitness, fatigue and form charts on your own computer. Replaces TrainingPeaks.
zoffline: ride the Zwift worlds from a server on your own computer. Replaces a Zwift subscription.
I've only set up Endurain, NOOP and OpenGym myself so far. The rest are next.

Get the links and install steps
Pick one, set it up this weekend and let me know which one you went with.
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