Made for iPhone
A calorie counter app for iPhone should feel like part of the phone. Calorix connects to Apple Health instead of asking you to type your steps, shows your day on the Lock Screen instead of making you open the app, and answers Siri. Here’s exactly what it reads, writes and shows, so you know what to expect before you download.
Apple Health: what Calorix reads and saves
Calorix asks before it connects to Apple Health, and you choose what to share. Here is everything it can read and save; nothing else is touched.
| Data | Read from Apple Health | Saved to Apple Health |
|---|---|---|
| Food | Calories, protein, carbohydrates, fat | |
| Water | Water you log | |
| Activity | Steps, active energy, workouts | |
| Body | Weight | Weight you log |
Saving to Apple Health is on by default, and you can turn it off in Calorix’s settings. When you delete a meal or a weight entry in Calorix, it’s removed from Apple Health too, so the two never disagree. Health data is used only to run Calorix features: it is never sold, never used for advertising and never shared with advertising partners (privacy policy).
Burned calories, without counting twice
When you set up Calorix, your daily target already includes the activity level you chose, from sedentary to very active. Adding every calorie your Apple Watch or iPhone records on top of that would count a normal day’s movement twice.
So by default, Calorix adds only the active energy beyond what your plan already assumes: a long hike raises your budget for the day, an ordinary commute doesn’t. If you prefer, switch to adding all of your active energy, or none. When Apple Health has no active energy for the day, Calorix estimates it from your workouts and steps instead, and removes duplicate workouts. The same formulas power the free TDEE calculator.
Widgets for the Home Screen and Lock Screen
| Widget | Sizes | What it shows |
|---|---|---|
| Calories left | Small, medium, large; Lock Screen | Calories left with Toasty; macros in medium; water, your fast and a scan button in large |
| Streak | Small, medium; Lock Screen | Your streak and best streak, the last 7 days, and a countdown in the last hours before midnight |
| Water | Small; Lock Screen | Today’s water, with a button that adds a glass |
| Fasting | Small; Lock Screen | Your fast’s timer, with start and end buttons |
| Macros | Small, medium; Lock Screen | Protein, carbs and fat for the day |
| Buddy | Small, medium | Toasty’s tip of the moment, quick links to scan or describe a meal, and a water button |
The buttons in the water and fasting widgets work right on the Home Screen or Lock Screen, without opening the app.
Live Activities on the Lock Screen and Dynamic Island
- Fasting. While you fast, the timer runs on the Lock Screen and in the Dynamic Island, switches to “goal reached” when you get there, and shows a short summary when you end the fast. Apple limits a Live Activity to eight hours (Apple Developer), so for a 16-hour fast a fresh one appears the next time you open Calorix.
- Streak at risk. On an evening when you haven’t logged yet, opening Calorix starts a countdown to midnight, which turns into a “saved” message once you log. More on streaks with Toasty.
- Meal analysis. If you leave the app while a photo is still being analyzed, a Live Activity tells you when the result is ready.
Siri, Shortcuts and Control Center
Six shortcuts work with Siri and the Shortcuts app, in all 16 of Calorix’s languages:
| Shortcut | What happens |
|---|---|
| Log water | Adds 1 to 8 glasses, without opening the app |
| Start a fast | Starts your fast, optionally with a named schedule |
| End my fast | Ends the fast in progress |
| Calories left today | Siri tells you, without opening the app |
| Scan a meal | Opens the camera in Calorix |
| Log a meal | Opens Calorix to log |
On iOS 18 and later, two Control Center controls are available: one opens the meal scanner, the other adds a glass of water.
Requirements
- An iPhone with iOS 17 or later. Calorix 2.0 is iPhone-only; there’s no Android, iPad or web version yet, and an Apple Watch app is planned.
- Available in 16 languages, and the AI answers in your language.
- No account needed: sign in with Apple or Google only if you want your log backed up and synced to a new phone.
Calorix is free to download with a free trial of Pro; see pricing for what’s free and what Pro adds.
Updated October 11, 2026
