From book to body. Here's how.
Everything the book teaches you to do manually — automated, personalized, and continuously improving. Three steps. No guesswork.
Onboard in 5 Minutes
Your AI coach is ready before you finish your coffee.
Get your promo code
Buy the book on Amazon and receive a promo code. This code unlocks your 30-day free trial — extended from the standard 21-day trial.
Create your account
Sign up, redeem your code, and answer 6 quick questions: body stats, goals, available equipment, and your weekly schedule. That is all the AI needs.
Or import from the book
Already built a program with AI while reading? Import your conversation for instant continuity. Your AI coach picks up exactly where you left off.
Your first program — built immediately
The moment you finish onboarding, your AI coach generates a complete training program with exact weights, rep targets, and macro calculations tailored to your body and goals. No waiting. No templates. Everything is built for you.
Follow Your Personalized Plan
Every day, five things. Each one takes seconds.
Morning check-in (60 seconds)
Log your weight, energy level, sleep quality, and mood. Four taps. This daily data is what makes the AI smarter — it spots trends you would never catch in a spreadsheet.
Workouts with exact weights and rep targets
Open the app and your workout is waiting. Every exercise has your exact weight loaded and a target rep range. Just tap to log each set as you go. No math. No guessing what to do next.
Log meals your way
Snap a photo of your plate and let the AI estimate macros. Barcode scanning coming soon for packaged foods. Or search the 370,000+ food database manually. However you prefer to track, the system supports it.
Wearable sync — automatic
Connect your Apple Watch, Garmin, Strava, or Google Health Connect and your data flows in automatically. Heart rate, HRV, resting heart rate, sleep stages, steps, and active calories — all feeding into your AI coach's calculations.
AI coach available 24/7
Have a question about your program? Want to know if you should deload? Wondering why your weight stalled? Ask your AI coach anytime. It has your full history and responds with specific, data-backed answers — not generic advice.
Watch the System Learn You
Your AI coach gets smarter every day. Here is what that looks like.
Adaptive intelligence
The AI learns your preferences, patterns, and schedule over time. It notices that you train better in the morning, that you consistently undereat protein on weekends, that your sleep degrades after two consecutive heavy leg days. Then it adjusts.
Instant answers for common questions
Frequently asked questions — "What should I eat post-workout?" or "Can I swap bench for dumbbell press?" — get answered instantly from cached patterns. Zero AI cost, zero wait time.
Population-level insights
Your AI draws on anonymized, aggregated data across users. "70% of users in your bracket plateau at weeks 8-10" means your coach can preemptively adjust programming before you stall, not after.
Automatic phase transitions
Cutting to maintenance. Maintenance to bulk. Bulk back to cut. The AI manages these transitions automatically based on your data, adjusting calories, macros, and training volume with smooth ramps instead of hard switches.
DEXA calibration — ground truth
When you get a DEXA scan, feed the results into your AI coach. It recalibrates your lean mass estimate, body fat percentage, and BMR calculation against clinical-grade data. Every subsequent recommendation becomes more accurate. This is how the system continuously tightens its model of your body.
The Science Behind It
No guessing. No generic multipliers. Every calculation is grounded in peer-reviewed methods and calibrated against your real data.
Katch-McArdle BMR
Your basal metabolic rate is calculated from lean body mass, not just height and weight. This is the gold-standard formula used in clinical settings — not the generic Harris-Benedict equation that most apps rely on.
Per-Macro TEF
The thermic effect of food is calculated per macronutrient — Protein at 25%, Carbohydrates at 7.5%, Fat at 2%. This matters: a high-protein diet burns significantly more calories through digestion than apps using a flat 10% TEF estimate.
Wearable-Based TDEE
Your total daily energy expenditure comes from your actual wearable data — not a dropdown menu where you guess if you are "moderately active." Real heart rate, real steps, real active calories.
Progressive Overload
Weights increase based on percentage-based progression, not arbitrary jumps. Hit the top of your rep range? Your AI calculates the exact weight increase for next session based on the exercise category and your training history.
HRV/RHR Deload Detection
Your heart rate variability and resting heart rate reveal when your nervous system is overtaxed. The AI detects downward HRV trends and elevated RHR before you feel the fatigue, triggering deload protocols proactively.
EWMA Weight Trending
Daily weight fluctuates. The system uses exponential weighted moving averages to extract the real trend from the noise. You see the signal — not the water-weight spikes that cause most people to panic and quit.
Ready to start?
Your AI coach is waiting. Onboard in five minutes, get your first personalized program today, and watch the system learn you over time.
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