Track smarter. Lift heavier. Lose fat.
Private AI fitness coaching built for Indian bodies. On-device Gemma 3, real Indian foods, zero subscriptions — forever.
Everything you need.
Nothing you don't.
Built for one person's fat loss journey — every feature earns its place.
Your personal coach runs entirely on your phone
Powered by Google Gemma 3. No API calls, no cloud, no privacy trade-offs. Ask anything about nutrition, workouts, or your progress — answered in seconds, offline.
100+ Indian foods built in
Dal, chapati, idli, biryani, paneer — tracked correctly, not guessed from generic databases.
Predictive tips, not generic advice
A scored insight engine surfaces the most relevant observation for you — deficit trend, protein gap, streak risk — at exactly the right time.
Go beyond the scale
Log smart scale data — body fat %, muscle mass, visceral fat — and track WHR, FFMI, and recomp progress over time. Know if you're truly building muscle while losing fat.
Science-backed calorie burn
MET-based calorie calculation per exercise, not a flat guess. 1RM calculator, workout streaks, and full history.
Your coach lives
on your phone.
KarthikFit runs Google Gemma 3 entirely on-device — no API key, no internet, no data ever leaves your phone. Ask it anything about your diet, macros, or workout — it answers from your own logs.
Know your numbers.
Hit your targets.
Same formulas the app uses — Mifflin-St Jeor BMR, TDEE, and protein targets for fat loss with muscle retention.
Built for you.
Free forever.
No Play Store approval. No subscription. No account. Download the APK, install it, and start tracking in under two minutes.