Your Personal Trainer and Nutritionist. $29 a Month.
AI coaching that remembers your goals, adapts your workouts, and plans your meals — every single day.
21-day free trial. No credit card required.
Real results. Real person. 23% → 11.2% body fat.
Individual results not typical. Results depend on adherence, starting point, and individual factors.
Jason, 52 — West Point grad, Army veteran. Built this app to prove the system works on himself first.
Results not typical. Individual results vary.
Sound Familiar?
You've started over more times than you can count.
Not because you lack willpower. Because every plan assumes a perfect week. Life isn't perfect. Your coach should adapt — not reset.
You're losing weight. But are you losing the right weight?
GLP-1 medications work. But without the right training and protein strategy, up to 40% of what you lose can be muscle. That's not a transformation — that's a problem.
Generic plans don't know your injuries, your schedule, or your medications.
A 22-year-old's program wasn't designed for your disc problem, your beta blocker, or the week your kid got sick. Yours should be built around your actual life.
On Ozempic or Wegovy?
Your medication is working. Now make sure what you're losing is fat — not muscle.
Body by AI is built for exactly this. Protein targets calibrated to preserve lean mass, training programs that protect muscle during weight loss, and coaching that adapts as your appetite changes.
See How It WorksHere's What Changes
Your coach checks in every morning.
Not a reminder to open the app — a real assessment of how you slept, how you feel, and how sore you are, so your entire day adjusts automatically.
Morning Check-In
How did you sleep? Rate your energy and soreness. Your plan adjusts automatically.
App preview coming soonWorkouts built for TODAY.
Based on your recovery, your equipment, your time, and your actual progress. Not a template.
Today's Workout
Bench Press 185 lbs × 4 sets. Reduced 5% — your HRV was low this morning.
App preview coming soonMeals planned around your training.
Around your budget, and what's actually in your fridge. Macros calculated. Grocery list generated.
Meal Plan
Today: 185g protein, 2,100 cal. Chicken + rice post-workout. Shopping list ready.
App preview coming soonThe system behind the book
24+
Data points tracked daily
370K+
Foods in database
7
Wearable integrations
19
Codified science formulas
Real Results. Real Data.
Jason built Body by AI to coach himself — and it worked for him. At 52, he went from 23% to 11.2% body fat in 7 months using the same AI system you're looking at right now. Results vary.
Before
June 2025 · 23% body fat
After
January 2026 · 11.2% body fat
23% → 11.2% body fat. 7 months. Age 52. No guesswork — AI-coached nutrition and progressive training, every day.
Jason used the same app you're signing up for. The system was built around his own data, then opened to everyone.
Results not typical. Individual results vary.
Everything Your Coach Knows. Everything Your Tracker Can't Do.
Not a fitness tracker. Not a food diary. A complete AI coach that remembers everything about you and is built to get the math right.
Unlimited AI Coaching
Ask anything, anytime. No interaction limits. No counting messages. Your coach responds with your complete history in mind.
Precision Nutrition
Track macros with text entry or photo (barcode scan coming soon). Targets account for the thermic effect of each macronutrient — so your protein goal actually reflects how your body processes it.
Smart Workouts
Prescribed weights based on YOUR progression. Automatically adjusts for recovery, sleep, injuries, and medications.
Wearable Integration
Apple Health, Garmin, Strava, Google Health Connect. HRV, sleep, heart rate, steps — all flowing in automatically.
Meal Planning & Grocery Delivery
Coming SoonWeekly meal plans for you AND your family. Training-day nutrition. Budget-aware grocery lists. One-tap delivery through Instacart (coming soon).
Pro
Progress Tracking
Weight trends with 7-day averaging. Body fat tracking. Measurement logging. Exponential smoothing reveals the real trend beneath daily noise.
Phase Management
Cutting, maintenance, bulking with AI-recommended transitions based on YOUR data, not generic timelines.
Your Data, Your Control
Export everything anytime. Encrypted. Never sold. Delete on request. Service-disabled veteran owned.
Works with your wearable
Your Apple Watch, Garmin, Strava, or Google Health Connect data feeds directly into your coaching. Real HRV and resting heart rate drive deload decisions. Active calories calculate your true TDEE — no generic activity multipliers.
Start your transformation in 3 steps
Onboard in minutes
Tell us about your goals, fitness level, and health. Book readers can import their data for instant personalization — everyone else is up and running in minutes.
Follow your plan
Get daily workouts with exact weights. Log meals. Do your morning check-in. Your wearable syncs automatically.
Watch yourself transform
Track progress with real data. Your coach gets smarter every day, managing phase transitions and adjustments automatically.
Simple, transparent pricing
Unlimited AI coaching. No interaction limits. No counting. No anxiety.
Standard
Your AI-powered fitness coach
- Unlimited AI coaching conversations
- Personalized workout programming
- Complete nutrition tracking
- Wearable integration
- Progress tracking
- Phase management
- Data export (JSON/CSV)
Pro
Complete coaching + meal planning
- Everything in Standard
- Photo-based meal estimation
- Training-integrated weekly meal plans
- Family meal planning
- Budget-aware grocery lists
- Instacart grocery delivery link (coming soon)
- DEXA integration & calibration
- Advanced body composition analysis
- Priority AI response time
All new users: 21-day free trial. Book buyers: redeem your code for 30 days free.
No contracts. Cancel anytime. Your data exports with you.
Compare plans in detailCommon Questions
Do I need the book?
No. Everyone gets a 21-day free trial to start. Book readers get 30 days free and arrive with structured data that instantly personalizes their experience. Get the book on Amazon.
Is my data safe?
Encrypted at rest and in transit. Row-level security. Never sold. Full export or deletion on request.
What devices are supported?
Apple Health, Garmin, Strava, Google Health Connect. More coming. Works with manual entry too.
How is this different from MyFitnessPal?
MFP is a food diary. Body by AI is a complete AI coach — personalized workouts with your exact weights, nutrition planning, progress analysis, phase management, and a coach that remembers everything about you forever.
Ready to stop guessing?
Your AI coach is waiting. 21 days free — no credit card required.
Start Your Trial