Burnin: Calorie Counter

Your calorie app is guessing your metabolism. Burnin measures it.

Most calorie trackers estimate your maintenance calories with a formula based on your height, age and sex, and never update it. If your weight stops moving, the number stays the same.

Burnin compares what you log with how your weight actually changes, and recalculates your maintenance calories from that. Consistent errors in your logging are accounted for, so your tracking needs to be consistent, not perfect.

WHAT YOU GET

A calorie target that updates as your data comes in. The weekly check-in shows how much your metabolism changed since last week.

A forecast of when you will reach your goal weight, with a range around it.

A weight chart with week and 4-week views that shows your trend, not the day-to-day swings.

Protein, carbs and fat targets calculated from your calorie target and your weight.

LOGGING TAKES SECONDS

Type what you ate, say it, scan a barcode or take a photo. Each entry opens as an editable card, so you can correct it before it is saved.

The AI that reads your words and photos runs on your phone, so you can log without a signal. Nutrition values come from public food databases when you are online, and search shows products sold in your country first.

On-device AI needs a phone with about 4 GB of memory. Barcode scanning and food search work on any phone.

ON YOUR HOME SCREEN AND LOCK SCREEN

A Lock Screen ring with calories remaining, a rectangular widget with macros remaining, and a larger Home Screen widget. Tap any of them to open your log.

YOUR DATA

No account and no Burnin server. Your food log, weight history and meal photos are stored on your phone.

Export your log, weights and saved meals at any time as an Onyx file, an open format we published for food diaries. Importing an old backup keeps everything you logged after it.

If you also use Cookin, our recipe app, both apps share one copy of the AI model, so you only download it once.

Available in English, Spanish, Brazilian Portuguese, French, German and Italian.

Free, with one banner on the profile tab. No ads on the logging screens.