Your Calories Should Adapt to You.
Not the other way around.
CutEngine uses machine learning and your Apple Watch data to calculate personalized, daily-adjusted calorie and macro targets — so your cut actually works.
Static Calculators Stop Working After Week 2
Your metabolism adapts. Your activity changes. Your recovery fluctuates. A number from a formula doesn't know any of that.
Static Targets
Same number every day, regardless of how your body responds
No Recovery Awareness
Pushing a deep deficit when your body is signaling for a break
One-Size-Fits-All
Population averages applied to your unique metabolism
Features
Data-Driven Cutting, Not Guesswork
CutEngine replaces doubt with data. Every feature is designed to give you precise, adaptive guidance through your fat loss phase.
ML-Driven Daily Adjustment
Your calorie target adapts every day based on 14+ days of real data — not a static formula from day one.
Biofeedback Safety
6-signal recovery system monitors sleep, HRV, energy, mood, hunger, and libido. Auto-reduces deficit when recovery declines.
HealthKit-First
Automatic data from Apple Watch — steps, workouts, sleep, HRV. No manual logging of activity required.
Enhancement-Tier Aware
Natural, TRT, GLP-1, peptides, bodybuilding, contest prep — each tier gets different deficit strategies and safety thresholds.
Smart Rest & Refeeds
Automatic rest day recommendations based on training patterns. Refeed scheduling matched to your body fat percentage.
Multi-Method Body Comp
DEXA > Navy + Caliper > HealthKit > tier estimate. Uses the most accurate data available to you.
How It Works
From Setup to Adaptive in 14 Days
Connect HealthKit
Link your Apple Watch. CutEngine automatically pulls steps, workouts, sleep, HRV — no manual entry.
Set Your Cut
Choose your enhancement tier, input your body composition data, and set your deficit aggressiveness.
Get Adaptive Targets
After 14 days of data, the ML model learns YOUR metabolism and adjusts calories and macros daily.
Compare
Not Another Calorie Counter
CutEngine is built for serious athletes doing intentional fat loss phases. Here's how it stacks up.
Daily calorie adjustment
HealthKit-first (auto data)
Biofeedback safety system
Enhancement-tier awareness
Multi-method body composition
Adaptive macro targets
Smart refeed scheduling
Rest day recommendations
| Feature | CutEngine | MyFitnessPal | MacroFactor | RP Diet |
|---|---|---|---|---|
| Daily calorie adjustment | Weekly | |||
| HealthKit-first (auto data) | Partial | |||
| Biofeedback safety system | ||||
| Enhancement-tier awareness | ||||
| Multi-method body composition | Partial | |||
| Adaptive macro targets | ||||
| Smart refeed scheduling | ||||
| Rest day recommendations |
Screenshots
Built for Serious Athletes
Dark, data-dense, zero noise. Everything you need to manage your cut — nothing you don't.
Dashboard
Your daily plan, body metrics, and adaptive macro targets at a glance.
Meals
Simple checklist to hit your targets. No obsessive food logging required.
Settings
Configure refeed schedules, rest days, and smart notifications.
Stop Guessing. Start Adapting.
Join the waitlist and be the first to get CutEngine when it launches on iOS. Your cut deserves better than a static calculator.
No spam. We'll email you once when the app launches.