PRTN AI: Muscle Coach

PRTN AI is your muscle-building coach. Snap a photo, hit your daily protein goal, and see whether today is actually building muscle — backed by sports science.

PRTN AI is the muscle-building companion for people who train. Protein is the hero input. Building muscle is the outcome. We connect the two.

WHAT YOU GET
• AI Food Scan — snap a photo, get protein, calories, carbs, and fat in seconds
• Barcode Scan — instant nutrition from millions of products via Open Food Facts
• Daily Protein Goal — set it once, track every gram, see your remaining protein at a glance
• Full Macros & Calories — protein leads the home screen, with calories, carbs, and fat one swipe away
• Quick Add — log a known portion in two taps, no scan required
• Apple Health Sync — your protein writes back to Health automatically
• Privacy-First — your food log stays on your device and yours alone

FOR PEOPLE WHO TRAIN
PRTN AI is for lifters, recompers, and athletes who want to know whether today moved them closer to more muscle. No meal categories. No guilt. No "deficit" language. Just your protein goal, your macros, and a clean food log of what you have eaten today.

WHO IT'S FOR
• Lifters tracking protein for muscle and lean bulk
• Recompers who want muscle without guessing
• Optimizers tracking sleep, HRV, and lifts alongside nutrition
• Anyone tired of bloated calorie counters and meal-planner apps

HOW IT WORKS
1. Tell us about your training and your goal in a short onboarding flow
2. See your personal 12-month muscle projection before you finish setup
3. Log food by AI photo scan, barcode, or quick add
4. See your protein totals, remaining grams, and full macro breakdown instantly
5. Sync to Apple Health if you want your protein in your health record

THE SCIENCE
PRTN AI is calibrated to peer-reviewed sports science — Morton et al. 2018 on protein dose-response, Schoenfeld on training volume, Lamon on sleep and muscle protein synthesis. Our 12-month muscle projection is an orientation value based on this research. It is not a medical prediction.

PRTN AI PRO
Pro unlocks unlimited AI food scans, full history, advanced macro views, and an adaptive protein goal that learns from your routine. The free tier includes manual logging, limited AI scans, and 7 days of history.

Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage subscriptions in your App Store account settings.

PRIVACY & TERMS
We take privacy seriously. Your food log is yours. See https://prtn.ai/privacy and https://prtn.ai/terms.

Questions or feedback? hello@prtn.ai