FuelFlow
by TheVSG LLC
· Health & Fitness
· Free
On the App Store since December 2025
· Data updated
FuelFlow is made and published by TheVSG LLC. AppBrain is an independent app data site and isn't affiliated with TheVSG LLC. The app name, icon, screenshots and description belong to TheVSG LLC and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 5.00
- 2 ratings
- Last updated
- October 23, 2026
It doesn't have enough ratings yet to judge what users think.
Rankings
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Competitors
Similar apps and more from TheVSG LLCAlternatives to FuelFlow
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Releases
Updates seen on the App Store- Version
- 2026.10.16
- Launched
- December 2025
No changelog data
User feedback
Ratings and reviews on the App StoreComments on FuelFlow for iOS
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 109.2 MB
- Content rating
- Everyone
Technologies used by FuelFlow
About the app and developer
About FuelFlow
FuelFlow is a health & fitness app developed by TheVSG LLC.
User Ratings
FuelFlow is rated 5.00 out of 5 stars. The rating is based on 2 ratings.
App Information
FuelFlow is freely available from the App Store. The app size is 109.20 MB. The latest version available is 2026.10.16. The last update was on October 23, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since December 2025.
Developer information for TheVSG LLC
Address:
Store listing
By TheVSG LLC, from the App Store
Screenshots by TheVSG LLC, from the the App Store listing
Description by TheVSG LLC Written by the developer, not by AppBrain. Click to read.
Built for the Dark Miles
FuelFlow is a real-time fueling app for endurance athletes — the ones who know "just send it" stops working past mile 21. Whether you're prepping for your first marathon or your tenth 100-miler, FuelFlow tracks what you're putting in versus what your body is asking for, and tells you when to do something about it.
NEW: ULTRA MODE (EARLY ACCESS)
Build a race plan on the web at fuelflow.run — course, aid stations, pacing, per-phase fueling targets — then race it on iPhone and Apple Watch.
• Aid station tracking: know what's coming and what your next segment needs
• The Stack: an adaptive UI that simplifies as you get deeper into the pain cave, so the right action is always one tap away
• Crew Mode: generate PDF crew cards and share links so pacers and crew know what to hand you, when
• Course-aware fueling targets that respect terrain and pace
• Works offline once your plan is downloaded
Enable Ultra Mode in Settings.
TRACK WHAT MATTERS, IN REAL TIME
Log carbs, sodium, and water as you go — on iPhone or Apple Watch. No mental math at mile 18 or mile 93. Smart status messages tell you whether to fuel now, soon, or whether you're crushing it, based on where you are in the activity — not just hourly goals.
APPLE WATCH THAT ACTUALLY WORKS
Log nutrition without pulling out your phone. Quick Access Grid puts your go-to fuel one tap away. The watch app runs standalone — no phone required. Alerts when you fall behind.
AUDIO COACHING: EYES UP, HANDS FREE (EARLY ACCESS)
Spoken nutrition reminders during activities. Eight crew personalities from zen to drill sergeant.
BUILT FOR ENDURANCE SPORTS
• Running — road, trail, ultra
• Cycling — road, gravel, mountain
• Triathlon and multisport
• Nordic skiing, swimming, hiking, mountaineering
YOUR DATA, YOUR WAY
Export every session: CSV, PDF (with route map and heart-rate graph), TCX, GPX, FIT. Import workouts from Apple Health, Strava, Garmin Connect, or upload FIT files from your bike computer to add nutrition to past activities.
SMART TRACKING FEATURES
• Customizable nutrition goals per sport
• Sweat profile data with H drop data import
• Pre-activity nutrition logging
• Weather and route data
• GI distress and energy level tracking
• Personal records and trend analysis
PRIVACY FIRST
Your health data belongs to you. iCloud syncs privately across your devices. We don't sell your information or share it with third parties.
RACE-DAY TESTED
Built by ultrarunners. Tested at trail 50s, 100Ks, and 100-milers. Sharpened every release.
START FUELING SMARTER
Download FuelFlow and stop wondering if you're doing it right.
Your next personal best starts here.
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
FuelFlow is a real-time fueling app for endurance athletes — the ones who know "just send it" stops working past mile 21. Whether you're prepping for your first marathon or your tenth 100-miler, FuelFlow tracks what you're putting in versus what your body is asking for, and tells you when to do something about it.
NEW: ULTRA MODE (EARLY ACCESS)
Build a race plan on the web at fuelflow.run — course, aid stations, pacing, per-phase fueling targets — then race it on iPhone and Apple Watch.
• Aid station tracking: know what's coming and what your next segment needs
• The Stack: an adaptive UI that simplifies as you get deeper into the pain cave, so the right action is always one tap away
• Crew Mode: generate PDF crew cards and share links so pacers and crew know what to hand you, when
• Course-aware fueling targets that respect terrain and pace
• Works offline once your plan is downloaded
Enable Ultra Mode in Settings.
TRACK WHAT MATTERS, IN REAL TIME
Log carbs, sodium, and water as you go — on iPhone or Apple Watch. No mental math at mile 18 or mile 93. Smart status messages tell you whether to fuel now, soon, or whether you're crushing it, based on where you are in the activity — not just hourly goals.
APPLE WATCH THAT ACTUALLY WORKS
Log nutrition without pulling out your phone. Quick Access Grid puts your go-to fuel one tap away. The watch app runs standalone — no phone required. Alerts when you fall behind.
AUDIO COACHING: EYES UP, HANDS FREE (EARLY ACCESS)
Spoken nutrition reminders during activities. Eight crew personalities from zen to drill sergeant.
BUILT FOR ENDURANCE SPORTS
• Running — road, trail, ultra
• Cycling — road, gravel, mountain
• Triathlon and multisport
• Nordic skiing, swimming, hiking, mountaineering
YOUR DATA, YOUR WAY
Export every session: CSV, PDF (with route map and heart-rate graph), TCX, GPX, FIT. Import workouts from Apple Health, Strava, Garmin Connect, or upload FIT files from your bike computer to add nutrition to past activities.
SMART TRACKING FEATURES
• Customizable nutrition goals per sport
• Sweat profile data with H drop data import
• Pre-activity nutrition logging
• Weather and route data
• GI distress and energy level tracking
• Personal records and trend analysis
PRIVACY FIRST
Your health data belongs to you. iCloud syncs privately across your devices. We don't sell your information or share it with third parties.
RACE-DAY TESTED
Built by ultrarunners. Tested at trail 50s, 100Ks, and 100-milers. Sharpened every release.
START FUELING SMARTER
Download FuelFlow and stop wondering if you're doing it right.
Your next personal best starts here.
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/