Stop guessing your race fuel.
Fuelstate is a marathon app for runners who need fueling plans, half marathon prep, long-run nutrition, and race-day execution. It plans every gel, carb, sodium, fluid, and caffeine hit, then cues you live while you run.
Built for iPhone and Apple Watch. Made for long runs, race day, and the miles where fueling decides the finish.
Know what to carry and when to fuel.
Fuelstate turns your run into a clear packing list, live iPhone countdown, Apple Watch confirmation, and audio prompts when you want to stay hands-free. It connects race nutrition, hydration, sodium, caffeine, and product timing into one plan runners can actually follow.
In short: an iPhone and Apple Watch fueling companion for runners who need a race nutrition plan they can actually execute when the miles get loud.
For the runners who know the fade is coming.
Fuelstate is for the long-run, marathon-block, half marathon, ultra, and race-day moments where a generic gel rule is not enough.
Arrive at mile 22 with enough fuel to keep pressing.
- Bonked once and do not want to gamble again.
- Hit the wall late, even after doing the training.
- Tried generic gel rules that never matched the run.
- Still wonder how many gels, bottles, or salt caps to carry.
- Want the last 10K of a race to feel like execution, not survival.
- Want carbon shoes and fitness to show up when fatigue starts talking.
A race nutrition planner built around the products you actually use.
Fuelstate helps runners answer the practical questions that decide a long run or marathon: how many gels to bring, when to take them, how much fluid and sodium to target, and when caffeine belongs in the plan.
Instead of leaving race-day nutrition to memory, Fuelstate turns your distance, pace, terrain, weather, gut tolerance, and product loadout into a minute-by-minute fueling strategy. The app is built for marathon training, half marathon prep, trail races, ultras, and everyday long runs where nutrition timing matters.
- Plan
- Build carb, sodium, fluid, caffeine, and product targets for a specific run or race.
- Pack
- See what to carry before you leave: gels, chews, bottles, drink mix, electrolytes, and custom products.
- Execute
- Follow live fueling countdowns, audio cues, haptics, Lock Screen updates, and Apple Watch prompts.
- Learn
- Review what you hit, what you skipped, and which products or timing choices may affect your gut.
FAQ
Runner questions, answered directly.
What is Fuelstate?
Fuelstate is a running fuel planner and live fueling companion for iPhone and Apple Watch. It helps runners plan gels, carbs, sodium, fluids, caffeine, and timing for long runs, half marathons, marathons, ultras, and race day.
How is Fuelstate different from a generic gel reminder?
Fuelstate plans around the runner, the run, the conditions, and the products already in the runner's kit. It does not stop at "take a gel every 30 to 45 minutes"; it turns the full nutrition target into a practical schedule.
Can Fuelstate help with marathon and half marathon race-day prep?
Yes. Fuelstate is built for training runs and race-day execution, including marathon fueling, half marathon nutrition, race-week carb loading, hydration targets, sodium planning, caffeine timing, and what-to-carry checklists.
Does Fuelstate work during the run?
Yes. Fuelstate gives live countdowns, audio prompts, haptics, Lock Screen updates, and Apple Watch cues so runners can follow the plan without memorizing timing at mile 14 or pulling out a phone repeatedly.
Is Fuelstate a marathon app or a fueling app?
Fuelstate is a marathon app focused on fueling. It complements marathon training apps, GPS watches, and coaching plans by focusing specifically on race nutrition, hydration, sodium, caffeine, product timing, and live fueling execution.
Can Fuelstate help me know how many gels to bring for a marathon?
Yes. Fuelstate turns your run details, pace, conditions, gut tolerance, and product choices into a what-to-carry list and fueling schedule, including gels, chews, drink mix, sodium, fluids, and caffeine where relevant.
Does Fuelstate replace a sports dietitian?
No. Fuelstate is a sports nutrition planning tool for runners, not medical advice or a replacement for a registered dietitian, physician, or individualized clinical nutrition care.
How is Fuelstate different from a running watch or workout tracker?
Running watches and workout trackers record pace, distance, heart rate, and routes. Fuelstate focuses on the nutrition execution layer: what to carry, when to take it, and how to follow the plan during the run.
How Fuelstate fits with the tools runners already use.
Fuelstate does not replace your watch, coach, or training plan. It fills the race nutrition gap those tools usually leave behind.
| Tool | Best for | Personalizes by | Products | Live cues | Watch |
|---|---|---|---|---|---|
| Fuelstate | Race nutrition planning and execution | Run, runner, conditions, gut tolerance, and product loadout | Yes | Yes | Yes |
| Generic gel reminders | Simple timing alerts | Usually fixed intervals | Rarely | Sometimes | Varies |
| Spreadsheets or notes | Manual race plans | Whatever the runner calculates | Yes, manually | No | No |
| Running watches | Pace, distance, heart rate, and routes | Training and activity data | No | Limited | Yes |
Run the plan. Keep the power.
Free to start. Precision marathon and long-run fueling for iPhone and Apple Watch.
Download on the App Store