ChainFit
Never break the chain
A gamified fitness habit tracker with XP, streaks, badges, and an optional AI coach. Log workouts, track body weight, build routines, and level up — all stored locally.
Android · Free to download
Take a look
See ChainFit in action
Features
Everything it does
Gamified streaks
Earn XP, unlock badges, and keep your chain alive — motivation that compounds.
Log every workout
Exercises, sets, reps, weight, and duration — your full training history in one place.
Routines & goals
Build workout routines and set daily goals that fit how you actually train.
Insights you'll use
Monthly and yearly charts reveal trends in your training and body weight.
AI trainer, optional
Bring your own Gemini key for coaching and food-photo analysis — or stay fully offline.
Local & private
Encrypted on-device storage. No accounts, no cloud, no tracking.
About ChainFit
ChainFit turns showing up into a game. Log workouts, build routines, track your body weight, and earn XP, badges, and streaks as small daily habits compound into real results.
Everything is stored locally and encrypted at rest — no cloud, no accounts. An optional AI trainer (Google Gemini, your own key) reads your fitness context and can even analyse food photos to coach you; skip it and ChainFit works entirely offline.
- XP, levels, badges & streaks
- Workout & routine builder
- Body-weight & insights charts
- Optional AI trainer (Gemini)
Get ChainFit
Download ChainFit on Android and start in seconds — no account required.