Fuelstate: Marathon Fueling
Carb · sodium · gel timing
Free · In-App Purchases
Turn the gels and drink mix you already use into a personalised packing list and live fuelling cues that remind you mid-run.
Fuelstate calculates your exact carbs, sodium, and fluid for every marathon, training run, and race — then shows a live countdown on your Lock Screen so you never miss a gel.
Built for marathons, ultras, half marathons, and triathlons. Science-based targets that adapt to your body weight, temperature, humidity, terrain, fatigue, and gut sensitivity — not generic “one gel every 45 minutes” advice.
PERSONALISED 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 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 fuelling cues
RACE DAY MODE (PRO)
• Full race protocol with pre-race, per-hour, and finish-line fuel windows
• Live Activity countdown so you never miss a sodium hit or gel window
• Built for marathons, ultras, triathlons, and trail races
CARB LOADING PLANNER (PRO)
• Science-based 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
EXTENSIVE PRODUCT CATALOGUE
• 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: $7.99/month or $59.99/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 any time 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
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Bug fixes and polish for planning, purchases, and saved plans.
The developer, Fuelstate LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Location
- Contact Info
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Fuelstate LLC
- Size
- 159.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Location
- This app may use your location even when it is not open, which can decrease device battery life.
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment Information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Fuelstate Pro Annual USD 34.99
- Fuelstate Race Block USD 22.99
- Fuelstate Race Week Pass USD 5.99
- Fuelstate Pro Annual Plan USD 34.99
- Fuelstate Pro Monthly Plan USD 5.99
- Copyright
- © 2026 Fuelstate LLC
