Fuel your training, day by day.
PeakFuel turns your training into a daily fueling plan: energy and carbohydrate targets that follow each session, meal plans with real gram amounts, and an expenditure model that learns your metabolism from your own logs. Built for athletes in any sport, and for anyone who trains hard and wants to get leaner without guessing.
Download on the App StoreHow it works
How it works
Plan the week, log sessions, or let Apple Health, Strava and Intervals.icu bring them in from Apple Watch, Garmin, Whoop, Zwift, Wahoo and more. Wearable duration and power data override your typed estimate.
Every morning PeakFuel computes energy, carbs, protein, fat and fluids from the day's load, your weight trend, HRV readiness and your goal, and explains every number.
Meals are timed to your sessions with gram amounts. Swap items, skip a meal and the rest of the day is refuelled, or pick your own foods and let PeakFuel size the portions.
What's inside
Sliding energy-balance windows refit your expenditure from intake and weight, so targets converge on you, not on a formula.
Carbohydrate by day type and sport category, session fueling before, during and after, and competition eves keyed to tomorrow's start time.
Cut, maintain or gain at a safe rate, deficits placed on easy days, energy-availability floors, and diet-break prompts on long cuts.
Save routines that fill the plan automatically, scan barcodes, search Open Food Facts, or build meals from 230 bundled foods.
New workouts and weigh-ins arrive through Apple Health while the app is closed. No manual sync.
No accounts, no servers, no analytics, no ads. Everything stays on your iPhone. Export or erase it any time.
Pricing
PeakFuel is free to download. PeakFuel Pro unlocks the full app after a 7-day free trial, billed through your Apple Account.
$5.83 a month
one-time, while available
Prices shown in USD; your App Store shows local pricing. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends. Manage or cancel in Settings › Apple Account › Subscriptions.
Questions
Which sports does it cover?
Endurance, court, field, combat, strength and physique sports, plus gym training and general fitness. Pick your sport in onboarding and the carbohydrate tables, session costs and competition rules follow it.
Do I need a wearable?
No. Typed sessions work with published energy costs. A watch, power meter or Whoop makes the session cost and daily activity more accurate, and PeakFuel prefers power-based sources when the same ride arrives twice.
Is it medical advice?
No. Targets are educational and derived from published sports-nutrition consensus statements. Athletes with a medical condition or an eating-disorder history should follow their clinician's guidance.