Comparison

FuelFlow vs Calorie Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FuelFlow

This app helps endurance athletes optimize their nutrition and hydration during long activities. It provides real-time tracking, personalized fueling targets based on course and pace, and aids for crew and pacers. Features include offline functionality and Apple Watch integration for easy logging.

Highlights
  • Real-time nutrition and hydration tracking
  • Course-aware fueling targets
  • Adaptive UI for deep activity stages
  • Crew and pacer support
  • Offline plan functionality
  • Apple Watch standalone app
  • Audio coaching reminders
Features
Read full description

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/

About

Calorie Tracker

Features
Read full description

FuelFlow: Calorie Tracking, Simplified. Stop guessing and start glowing. FuelFlow is the cleanest, most intuitive way to track your nutrition, hit your calorie goals, and visualize your journey to a healthier you. Whether you’re looking to lose weight, gain muscle, or simply maintain a balanced lifestyle, FuelFlow takes the friction out of logging so you can focus on what matters: your progress. WHY FUELFLOW? Minimalist Design: No cluttered menus or confusing charts. Just a sleek, easy-to-read dashboard that shows exactly how much fuel you have left for the day. Visual Progress: Our signature "Progress Calendar" gives you a high-level view of your consistency. Turn those squares green and stay on a winning streak! Effortless Logging: Quick-add meals for breakfast, lunch, and dinner. Track your calories in seconds and get back to your day. Smart Insights: Monitor your average daily intake and see exactly how many days you’ve crushed your goals this month. FUELFLOW PRO (In-App Purchase Required) AI Food Scanner: Take the manual work out of logging. Simply snap a photo of your plate, and our advanced AI will identify the food and estimate the calories for you instantly. RE-IMAGINE YOUR ROUTINE Set Your Target: Customize your daily calorie goal based on your personal needs. Stay Accountable: Use the built-in streak tracker to build long-term habits. Lightweight & Fast: Designed for the modern iPhone, FuelFlow is snappy, responsive, and easy on the eyes. Your health journey is a marathon, not a sprint. Let FuelFlow be your pacer. Download FuelFlow today and make every calorie count! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FuelFlow4 screens
Calorie Tracker2 screens

Verdict

The call

The clearest difference is update cadence: Calorie Tracker at daily against FuelFlow's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FuelFlow sells 2 in-app purchases, starting at $1.99 per month and Calorie Tracker sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FuelFlow ships an update fortnightly, Calorie Tracker daily. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 9 level
FuelFlow versus Calorie Tracker: the parameters behind the verdict, then further details
ParameterFuelFlowCalorie Tracker
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS26.026.0
Further details — not scored
Size109 MB6 MB
Age rating4+17+
DeveloperTheVSG LLCEilon Udi

In-app purchases

2 purchases

FuelFlow

Subscriptions2
  • FuelFlow Premium$1.991 Month
  • FuelFlow Premium$14.991 Year
2 purchases

Calorie Tracker

Subscriptions2
  • Pro Monthly3 Days trial$7.991 Month
  • Pro Annually$89.991 Year

Questions

Is FuelFlow free?
FuelFlow is free to download, with in-app purchases available.
Is Calorie Tracker free?
Calorie Tracker is free to download, with in-app purchases available.
Do FuelFlow or Calorie Tracker have ads?
Neither FuelFlow nor Calorie Tracker shows ads.
Which is updated more often, FuelFlow or Calorie Tracker?
FuelFlow ships an update fortnightly, and Calorie Tracker daily. Most recently, FuelFlow was updated on October 24, 2026 and Calorie Tracker on October 16, 2026.

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