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Calk

The calorie counter you don't have to live in

Not less food — different food: more filling, more varied. A month to work out what to change, and from then on, just the weight trend.

A woman tracks food for a month, lives normally, then briefly checks in again during an autumn plateau
A year with Calk: a month of food logging in spring and a short food check in autumn.

Calk is available on iPhone, iPad, and Android.

What actually changes

The same plate, built differently

Calk forbids nothing. It shows what to replace inside the meals you already eat, and what to add: one part of the dish gives way to another, so the same plate keeps you full longer. Below are the three changes the report works with.

1Fewer calories per gram

When the calorie density of every dish was cut by a quarter, 24 young women ate 575 kcal a day less, and hunger and fullness ratings did not change Rolls 2006.

2More protein

Meta-analyses of controlled studies show a modest satiety effect and better preserved lean mass during weight loss Leidy 2015.

3More fiber

In a series of systematic reviews, the largest risk reductions across several outcomes fell between 25 and 29 grams of fiber a day Reynolds 2019.

Why not restriction? A diet lowers weight while the deficit holds. The trouble starts afterwards: temporary rules end, while the changes in appetite and energy expenditure last. A familiar dish you have changed asks for far less ongoing attention. Why diets don't work, and what to change in your food instead.

See the method

Build it once — two taps from then on

A meal template is a familiar dish broken into the few decisions that change it. Save your version with the ♥ button and it waits on the food tab: open it, tap “Eat”, done. Pesto instead of tomato sauce on today's pizza? Change only the sauce; the crust, cheese, toppings and portion stay in place while the whole meal recalculates.

Simplified constructor for demonstration.

Bowl Base · White rice Sauce · Soy sauce Protein · Chicken Serving size · M 161 kcal

Where do the numbers come from? Calk combines official food tables, specialist publications, product labels and recipe checks into one checked food catalog. See how Calk builds and checks its food data.

Your first month is free

The monthly read is what the logging is for

As the diary fills, food observations point out what stands out in recent days. After at least 20 complete food-log days and 10 days of weight data in one 30-day window, the Nutrition Report reads the ingredients and cooking choices behind the totals. There is rarely much to change: a handful of meals repeat often enough to define the month. The report shows them from four practical angles:

  • Your nutrition at a glance. Calories, macros, vitamins, minerals, variety and the main takeaway from the month.
  • How varied your food really is. Food groups, plant variety and the easiest gaps to fill.
  • Which foods are more filling. How calorie density, protein, fiber and water shape estimated satiety.
  • What to add and what to replace. Which repeating meals a change would move most, and which familiar foods fit.
Report cover: a calendar of the month with every day marked in, above or below the calorie range, next to macro ranges, vitamin and mineral coverage, food variety and the month's main finding.
Your month, day by day See the whole month at a glance — calories, macros, nutrients, variety and the main takeaway.
A grid of food groups and plant colours, with the cells this month covered filled in and the empty ones left blank.
Variety Map See how varied your food log was across plants and other food groups.
A scatter of the month's foods by calories per gram against estimated satiety, so the filling foods and the dense ones fall on opposite sides.
Estimated satiety per calorie Compare foods by estimated satiety — based on calorie density, protein, fiber and water.
A list of the nutrients that came in lowest against their reference, each with the everyday foods that would raise it.
Low spots and what may help See which nutrients were least represented in the log and which familiar foods could add more.
Start free

The core tracker is free

Free for ongoing use

Food logging, daily calorie and macro targets, weight entry and the weight-trend chart stay free. So does a shareable seven-day Variety Map.

Observations for your first 30 days

Your first 30 days include your first Nutrition Report and full access to the Observations section. Later reports and continued access to it are part of the paid tier.

Private, offline and ad-free

Food and weight logging run on your device without an internet connection. Calk has no ads and never will.

Calk is available on iPhone, iPad, and Android.

Open the example report See the overview, the estimated maintenance calories and the conclusion. → See a Variety Map Turn seven days of food into a picture of how varied your eating really is. → Coming from another tracker? See why Calk uses an editable meal template instead of barcode, photo AI and an endless search database. →

Frequently asked questions

What is Calk?

Calk is a calorie counter built around editable meal templates. You log a familiar meal in two taps, change only what was different today, and a month of that becomes a Nutrition Report: it names your repeating meals and what to add or replace in them. Once you have picked the changes, the food data collection is finished, and your weight trend tells you when a new short food check is worth doing.

How is this different from a diet?

Calk has no forbidden foods, no menu and no meal plan. What changes is the composition of familiar meals: fewer calories per gram, more protein and fiber. A restriction stops working the moment it ends, while a familiar dish you have changed keeps repeating on its own. More in why diets don’t work.

Can you count calories without a kitchen scale?

Yes. A meal template lets you choose the ingredients, cooking method, additions and a useful portion estimate. You can weigh an unfamiliar dish once if you want a reference, but Calk does not require a scale at every meal.

Do you have to log every day?

No. The first report needs at least 20 complete food-log days and weight data on at least 10 different days within one 30-day window. After that, you can step back from daily food logging and keep an eye on your weight trend.

What can I use for free?

Food logging, daily calorie and macro targets, weight entry and the weight-trend chart are free, and so is a shareable seven-day Variety Map. During your first 30 days, you also get your first Nutrition Report and full access to the Observations section at no charge. Later Nutrition Reports and continued access to Observations are part of the paid tier.

How is Calk different from photo-AI apps?

A photo recognizes the food on the plate, but it cannot tell how much oil, sauce, sugar or salt went into it, or which recipe it came from. Calk starts from an editable meal template, so those choices are yours and the same dish is logged the same way every time.

Does Calk replace a dietitian?

No. The Calk Nutrition Report is a detailed read of your food diary, not medical advice or a substitute for professional care.

How is Calk different from MyFitnessPal or Cal AI?

Most calorie trackers offer several ways to create a diary entry: database search, barcode, photo or voice. Calk uses one reusable meal template that you can adjust and eat again. See the full calorie-tracker comparison.

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