Calorie Counter Fitness
GunSim Health & Fitness iPhoneiPadiPod touch
Calorie Counter Fitness is a free Health & Fitness app for iPhone and iPad by GunSim. Requires iOS 17.0. Updated May 3, 2026.
- Price
- Free
- on the App Store
- Size
- 11 MB
- Age 4+
- Updated
- May 3
- 2026 · v1.2
Screenshots
About Calorie Counter Fitness
You've been counting calories wrong — not the maths, the timing. Your body burns stored carbs (glycogen) before it ever touches fat. Most days, if you're eating every few hours, your glycogen never empties. You stay in carb-burning mode all day, even in a calorie deficit. Calorie Counter Fitness shows you where you are in that cycle right now — and how your meals and workouts shift it. FAT BURNING ZONES, LIVE A real-time gauge tracks your liver glycogen throughout the day. Watch it fall after a workout, rise after a meal, and drop into the fat-burning zone as the hours pass. Five zones from Fed to Ketogenic — you always know which one you're in. KNOW WHEN THE SWITCH HAPPENS The app predicts your next zone transition before it arrives. Heading into fat-burning in 45 minutes? You'll see it coming. No guessing, no waiting to feel it. LOG MEALS AND WORKOUTS, WATCH YOUR CURVE MOVE Every meal and workout you log shifts your glycogen curve in real time. See exactly how a high-carb dinner pushes you back to Fed, or how a morning run burns through your reserves faster. TRACK WHAT ACTUALLY MATTERS Log calories, carbs, protein, and fat for every meal. Your daily glycogen chart shows the full picture — how food timing and exercise combine to shape your fat-burning window. YOUR DAY AT A GLANCE The home screen shows your current zone, time until your next transition, total calories, and fat-burning minutes accumulated today. Everything you need in one view. Download Calorie Counter Fitness and start seeing when your body actually burns fat.
What’s new
Version 1.2 · Updated May 3, 2026
Nicer Screenshots. Nicer gauge on the main screen.
App privacy
The developer, GunSim, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Calorie Counter Fitness
Looking for apps like Calorie Counter Fitness? Here are 6 similar apps on the App Store. The highest rated is iRunner Run & Jog Tracker (4.9/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Calorie Counter Fitness | – | Free | May 3, 2026 | |
| Zenith: Recovery & Strain | 4.8 / 5 (32) | Free | Aug 31, 2026 | Compare |
| iRunner Run & Jog Tracker | 4.9 / 5 (4,432) | Free | Sep 30, 2026 | Compare |
| AI Fitness Coach: Basic Fit | 4.8 / 5 (394) | Free | Nov 12, 2025 | Compare |
| sleep² sleeptracker & analysis | 3.6 / 5 (37) | Free | Oct 3, 2026 | Compare |
| OnCall Health | 3.1 / 5 (14) | Free | Oct 16, 2026 | Compare |
| The Breathing App: Calm Daily | 4.8 / 5 (1,308) | Free | Oct 3, 2026 | Compare |