Set a goal and watch it get closer. Get stronger week on week. One app for food and training that keeps score honestly.
Coming soon to the App Store for iPhonePick a goal weight and a pace, and Rackfuel shows the finish line move as you choose: lose faster, arrive sooner, but it warns you when a pace is too aggressive to hold, and it refuses targets below a safe floor outright.
Log sets with last session's numbers beside every one, and your personal bests sit on Progress where you can watch them climb. Getting stronger stops being a feeling and becomes a number with your name on it.
Every day you log anything, the streak grows and the day's ring closes. Earn a badge and the app stops to hand it to you. A missed day is absence, not failure, and nothing ever rewards eating less.
Most apps guess your calorie target once and never check it. Rackfuel compares what you log with how your weight actually moves, and within a couple of weeks your target comes from your own body, not a formula. When your logging is too patchy to trust, it says so.
Milestones
Consistency, strength, training and progress, each with its own badges. Locked ones show what is coming, and the weight milestones only count for people with weight to lose.


The honest comparison
Cal AI scans food well but does not log training. Strong logs training well but never asks what you ate. Rackfuel does both, and connects them, which is the only way a calorie target can learn from your training.
| Rackfuel | Cal AI | MyFitnessPal | Strong | |
|---|---|---|---|---|
| Photo meal scanning | Yes | Yes | Paid tier | No |
| Barcode and label scanning | Free | Yes | Barcode paid | No |
| Full workout logger with set memory | Yes | No | Basic | Yes |
| Burn measured from your own data | Yes | Formula | Formula | No |
| Says when not to trust its numbers | Yes | No | No | No |
| Logging your first meal takes | Under a minute | Sign-up first | Sign-up first | No food logging |
Based on publicly documented features of each app, August 2026. Their features change; check theirs before choosing. Cal AI, MyFitnessPal and Strong belong to their respective owners.
Pricing
The core of Rackfuel is free with no time limit: full food logging, full workout logging, your weight trend and your history. Paying is for the features that cost us money to run, never for access to your own data.
£0
£34.99 / year
Launch price, kept for as long as you stay subscribed. Billed through the App Store, cancel any time in your Apple account. Monthly and one-off lifetime options live in the app.
FAQ
Rackfuel is in the final stretch of development and heading to the App Store soon. This page will carry the download link the day it is live.
iPhone, running iOS 17 or later. An Apple Watch companion is planned after launch. There are no plans for Android.
No. Your data lives on your device and the app works fully offline apart from photo meal estimates, which need a connection.
It is an estimate, and Rackfuel is honest about that. Every photo estimate is labelled with its confidence, you can correct it in one tap, and a barcode or label scan is always more accurate when you have the packet.
They are sent securely for estimation, processed, and discarded. They are not stored, not used to train models, and never linked to your identity.
The engine is what turns logging into answers, and its photo pipeline costs real money to run. The free tier is genuinely useful forever; Pro pays for the parts that cost us per use, at a price that undercuts the apps that do half of this.
Rackfuel is a tracking tool, not medical advice, and it is built to be on your side. It refuses calorie targets below a safe floor and will not aim at an underweight goal. A day slightly over target shows in gold, not red; red is kept for genuinely far over. The streak forgives one missed day a week, because life happens. The quotes never guilt, reminders cap at one per day at a time you chose, and a photo estimate is never written to Apple Health until you confirm it. If you have a history of disordered eating, please speak to a professional before using any calorie tracker.