UltraFuel: Ultramarathon Fuel

Ultra fueling & gut training

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Fuel your race like you've got a pro crew. Sponsored elites have nutrition dialed in and a crew feeding them every few miles. Everyone else is guessing. UltraFuel gives any ultramarathon or trail runner that same advantage: a fueling plan built from your own training, a gut trained to handle it, and a crew that knows exactly what you need on race day. PLAN — built from your runs, not a chart UltraFuel turns your own training data into personalized ultramarathon nutrition: how many carbs per hour you can absorb, how much fluid and sodium you lose, and what to take at every aid station. It learns your carb tolerance and estimates your sweat rate from the runs you already log. No population averages, no generic race nutrition calculator. Your fueling plan gets sharper the more you run. TRAIN — a gut that's ready before the start line Stomach problems end more ultras than legs do. UltraFuel builds gut training into your weeks of prep, gradually raising your carb tolerance so your body is ready to take on real race fuel long before race morning. Gut training as a structured program, not a one-time calculation. EXECUTE — a crew that knows the plan An aid-station planner and offline crew tracker in one. Share your race plan and your crew knows exactly what to have ready at every stop: what, when, and how much. Drop-bag lists, per-station products, printable crew sheets. Works fully offline, even deep in the mountains with no signal. BUILT FOR EVERY ULTRARUNNER Whether you're a solo runner self-crewing your first 50k, training your gut for your first 100-miler, or an experienced racer who wants your support crew dialed in, UltraFuel gives you the tools the pros already have. Syncs with Strava and Apple Health, so runs from Garmin, COROS and Apple Watch flow straight in. WHY TRUST IT UltraFuel was built by an ultrarunner who watched sponsored elites get a fueling edge most of us never had. Every recommendation is grounded in published sports-nutrition research and refined with AI. It's not clinical advice, and it's not a replacement for your doctor or dietitian — it's the tool that closes the gap between elite support and everyone else. FREE FOREVER Training-app sync, manual logging, the full gut-training program, your fueling profile, core insights, one race with a basic plan, and joining someone else's race as crew. ULTRAFUEL RACE KIT An optional subscription that adds unlimited races, aid-station and drop-bag planning, per-station product lists, printable crew sheets, live crew tracking, and the deeper analysis layer — temperature patterns, race-day projections and training trends. Monthly: $11.99 per month Annual: $69.99 per year, with 14 days free on your first subscription Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Terms of Use: https://ultrafuel.app/terms.html Privacy Policy: https://ultrafuel.app/privacy.html Download UltraFuel and stop guessing your way through race-day nutrition.

Ratings & Reviews

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Race kit: plan what you carry between aid stations, with the station handoff and drop bag built from your own kit. Drink mixes: set a bottle volume or pick a standard size. Product search now covers USDA FoodData Central alongside Open Food Facts. A value a source does not publish reads as unknown. Backyard Ultra: set a loop length and a yard goal. Plan a run tallies what you add, and uses your own pace when distance is blank.

Version 1.1.1

The developer, Charles Hoppe, 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
    • Location
    • Contact Info
    • User Content
    • Identifiers

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Charles Hoppe
Size
  • 55.2 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPad
    Requires iPadOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Location
  • This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
  • English
Age Rating
9+
In-App Purchases
Yes
  • Race Kit Yearly $69.99
  • Race Kit Monthly $11.99
  • Learn More
Copyright
  • © 2026 UltraFuel
  • Developer Website
  • Privacy Policy