Calendar-First Fitness Tracker
Your calendar-first
fitness tracker.
AI workouts. Smart nutrition tracking. Recovery-aware training. One quiet app that moves with you.




What's inside
Four systems. One quiet engine.
01 — Intelligence
AI Workout Builder
Pick from 13 training modalities. StayFit studies your recovery map and builds plans that respect what your body actually needs today.
02 — Awareness
Recovery Tracking
A living muscle map updates in real-time. See what's ready to train, what needs rest, and train around it — automatically.
03 — Fuel
Smart Nutrition
Type what you ate in plain English. AI logs your calories, macros, and hydration — no barcodes, no databases.
04 — Consistency
Daily Calendar
Log workouts, meals, photos, and moods on the same calendar that runs your life. Green dots fill your month as the habit sticks.




AI Nutrition
Describe your meal.
AI does the rest.
No barcodes. No endless searches. Type what you ate in plain English — “chicken burrito bowl with rice and guacamole” — and StayFit breaks down the calories, macros, and micronutrients in seconds.
- Natural-language food logging
- Automatic macro & calorie analysis
- Meal history with photo evidence






Training & Recovery
Recovery-aware training.
Zero guesswork.
200+ exercises. A live muscle-recovery body map. AI that plans around what you trained yesterday — so every session lands on muscles that are actually ready to work.
Your Dashboard
Everything at a glance.
Streaks, weekly stats, nutrition, AI assistant — one home screen that actually earns its place on your home screen.

Pricing
Free to start.
Upgrade when it earns it.
The free plan is genuinely useful. Paid tiers add AI coaching, advanced analytics, and unlimited everything when you're ready.
Free
Start tracking today
- Workout logging
- Calendar view
- Basic exercises
- Streak tracking
- Progress photos
Plus
For regulars building the habit
- Everything in Free
- 20 AI chat messages/mo
- 5 food photo scans/mo
- 2 AI workout plans/mo
- Advanced exercise library
3-day free trial
Pro
For athletes chasing results
- Everything in Plus
- 100 AI chat messages/mo
- 30 food photo scans/mo
- 5 AI workout plans/mo
- Direct messaging
- Recovery insights
- Progress analytics
3-day free trial
Max
For serious training
- Everything in Pro
- 300 AI chat messages/mo
- 100 food photo scans/mo
- 15 AI workout plans/mo
- Direct messaging
- Priority AI processing
- Early access to features
3-day free trial
Already have an account? Log in
Voices
What people are saying.
Finally an app that doesn't try to do everything. I just log and go. It's become part of my morning routine.
Mike R.
Strength training
The calendar view changed how I think about consistency. Seeing those green dots fill up is genuinely motivating.
Sarah K.
HIIT + running
I've tried every fitness app. This is the only one I've stuck with past two weeks. Simple is powerful.
Jordan T.
Yoga + strength
FAQ
Straight answers.
Start your streak today.
3 days free. Cancel anytime. No credit card required.
Available on iPhone and Apple Watch
