Fuelstate: Marathon Fueling

Stop guessing your race fuel.

Fuelstate builds a personalized fueling plan for every marathon, long run, and race — then gives you live countdowns, Apple Watch prompts, and audio cues so you know exactly what to take, right on time.

Plan your gels, carbs, sodium, fluids, caffeine, and race-week carb load from one place. Whether you’re training for a half marathon, marathon, ultra, or triathlon, Fuelstate helps you show up prepared and stay fueled through the finish.

WHAT FUELSTATE HELPS YOU DO
• Know when to fuel before you fade
• Pack exactly what you need before the run
• Build plans around the gels, drinks, caps, and mixes you already use
• Follow live countdowns from your iPhone, Lock Screen, Dynamic Island, or Apple Watch
• Get audio cues when your phone stays in your pocket
• Adjust plans for pace, distance, weather, terrain, fatigue, and gut sensitivity
• Prepare for race week with carb loading and race-day protocols

PERSONALIZED FUEL STRATEGY
• Calculates per-run carb, sodium, and fluid targets based on your physiology
• Adapts to temperature, humidity, terrain, fatigue, and gut training history
• Supports gels, chews, drink mixes, electrolytes, and salt capsules
• Caffeine tolerance and stomach sensitivity adjustments built in

LIVE RUN MODE
• Real-time fuel countdown on your Lock Screen and Dynamic Island
• Apple Watch companion app for wrist-based fuel prompts, Done/Skip actions, and Watch-recorded workouts
• Apple Health and Strava workout sync — imports runs from any GPS watch or fitness tracker
• Per-event reminders for every gel, drink, and electrolyte intake
• GPS route tracking with pace and elevation data
• Heart rate zone-aware fueling cues

RACE DAY MODE (PRO)
• Full race protocol with pre-race, per-hour, and finish-line fuel windows
• Live Activity countdowns so you never miss a sodium hit or gel window
• Built for marathons, ultras, triathlons, and trail races

CARB LOADING PLANNER (PRO)
• Science-backed 3-day protocol tailored to your body weight and race distance
• Day-by-day macro targets and meal timing breakdown
• Takes the guesswork out of race week nutrition

FEMALE CYCLE SYNC (PRO)
• Sodium and carb targets automatically shift with your training phase
• Built for women training and racing across their full cycle

PRODUCT CATALOG + PANTRY
• Curated database of leading endurance fuel brands — accurate nutritional data per serving
• Carbs, sodium, caffeine, and calorie data for gels, mixes, chews, and electrolytes
• Build your personal pantry and race-day loadout
• GI history tracks which products work for your gut

WHAT RUNNERS GET WRONG
Most runners undereat on long training runs and overfuel on race day. Fuelstate fixes both. Your targets update dynamically based on intensity, sweat rate, and conditions.

Fuelstate Pro unlocks Race Day Mode, Carb Loading Planner, Female Cycle Sync, PDF Export, and the full electrolyte brand database.

Subscription options: $5.99/month or $49.99/year. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. Manage or cancel anytime in your Apple ID account settings.

Fuelstate is a sports nutrition planning tool for athletes. It is not medical advice and does not diagnose, treat, prevent, or cure any condition. Consult a healthcare provider for medical guidance.

Privacy Policy: https://fuelstate.app/privacy
Terms of Use (EULA): https://fuelstate.app/terms
Support: hello@fuelstate.app