FuelKit Support

Your food log, weight entries, profile, and settings are stored locally on your device. Nothing is sent to us. If you use iCloud or iTunes/Finder device backups, your FuelKit data is included in that private backup, which only you control.

FuelKit has about 8,000 whole foods from USDA FoodData Central, a U.S. government nutrition database, and about 99,000 packaged products from Open Food Facts, an open community database, built into the app. When neither has a match, FuelKit can look the food up online, and only your search text or the barcode is sent, never your log or personal details. Entries you type yourself never leave your device.

FuelKit always calculates calories from the macros using the standard Atwater factors (4 kcal per gram of protein and carbohydrate, 9 for fat, 7 for alcohol). That keeps a single source of truth, so edits to a food never leave stale calorie totals behind. Printed labels are rounded, so you may see a small difference.

Your BMR uses the Mifflin–St Jeor formula from your height, age, biological sex, and latest bodyweight, multiplied by your activity level to estimate maintenance calories. Your goal then adjusts that (about 3,500 kcal per pound). Protein scales with your bodyweight, fat is a share of your calorie target, and carbs fill the remainder. Once you’ve logged enough weigh-ins and days of food, FuelKit recalibrates maintenance from your actual results instead of the formula. All of it is an estimate, not medical or nutritional advice.

Yes. Tap the barcode button when adding a food and point your camera at the code. Most packaged products are found in the built-in database; anything else is looked up online by its barcode alone.

Both, if you want. Turn on Settings → Apple Health to share your weight, height and the food you log with Apple Health, and to count the energy your workouts burned, including ones recorded by LiftKit or your Apple Watch. With LiftKit on the same iPhone, the two apps also share your training profile and goal on the device, so you only set them once.

Free logs food every way, with targets, trends and Apple Watch, and plans tomorrow with one repeating food. Pro plans any day ahead, repeats any number of foods, and adds meal plans, built or imported. It is one purchase ($19.99 in the US) for both of our apps: buy it in FuelKit or in LiftKit and it unlocks in both, on all your devices. There is no subscription. On a new phone, open FuelKit and tap Settings → Restore Purchase.

No account, ever. Search, logging, targets and everything else work offline. A connection is only used to look up a food or barcode that isn’t built in.

Tap any entry in a meal to edit its name, meal, or macros; swipe it left to delete. To erase everything at once, use Settings → Delete All Data. Deleting the app also removes its local data.