Nutrition tracking

Food logging that shows up in your recovery.

Search a big food database or snap a photo. Sixteen tracks calories and macros against a goal you set, then shows what a late dinner did to your sleep stress the same night.

Sixteen nutrition screen showing 39% under target with calories, protein, fat and carbs left and a Log Food button

Eat with the day in mind.

Your nutrition score is calories and protein against your goal, with the timing that your sleep can feel.

Search or photo

A large searchable database for packaged and whole foods, and photo logging when typing is too slow.

Goals that fit you

Set a weight goal and Sixteen suggests a calorie and protein target. Change it any time.

Timing matters

Meals are logged with time, so a heavy meal at 11pm sits next to the sleep stress it caused.

Macros without the spreadsheet

Calories, protein, carbs and fat as simple bars. A daily score so you know whether the day landed.

Then it changes the day

Measured is not the same as changed.

Logging a meal is one of the tasks that can earn screen time, and hitting your protein target is one of the wins your coaching line notices.

How earning screen time works

Questions people ask

How accurate is photo logging?
It is an estimate, like every photo based food logger. Sixteen shows the guess and lets you correct portions and items before saving.
Does Sixteen import nutrition from other apps?
Sixteen reads dietary energy and macros written to Apple Health, so a log kept elsewhere still counts toward your day.
Is there a diet plan?
No. Sixteen sets a calorie and protein target from your goal and tracks against it. It does not prescribe a diet or make medical claims.
Sixteen app iconSixteen

Pay once. Keep your data. Earn your scroll.

Sixteen is $99 once for lifetime access, or $19.99 a month. Connect the wearable you already own. No hardware to buy, no membership that expires.

iPhone (iOS 17 or later). Prices in USD.