Food and weight data can describe your routine, your body and what you are trying to change. Calk keeps that information on your side of the device.
The Privacy Policy is the legal source of truth. This page explains the same design in plain language.
What stays on your device#
Calk stores these on your device:
- food logs and portions;
- weight history;
- calorie and nutrition targets;
- insights and Nutrition Reports calculated from that data;
- your meal-template choices and settings.
Calk does not upload that nutrition data to its servers.
The built-in food catalog and calculations also run on the device. You can enter food or weight without an internet connection—on a flight, underground or anywhere else the network disappears.
What may leave the app#
Calk may process three smaller categories of data:
| Data | Why it is used | What it does not contain |
|---|---|---|
| Account name and email, if released by Apple or Google sign-in | Create and secure the account; operate access and subscriptions | Your food log, portions or weight history |
| Device-integrity signals | Confirm a genuine install and prevent abuse | Your diary contents |
| Limited product analytics | Find broken flows and improve the built-in food catalog | Meal contents, quantities, weight values, health values, name or email |
Product analytics may record that a meal or weigh-in was entered, that a report opened or that a search returned a result. A meal event may contain the numeric ID of a template in Calk’s catalog, not the food you chose inside it.
If a food search finds nothing, Calk may send the short search phrase so the missing food can be reviewed. This event is not sent when product analytics is off. Email-like text and long numbers are filtered, but you should still keep personal or medical information out of a food search.
Analytics is pseudonymous, not anonymous: it can include ordinary technical details such as the app version, operating system, approximate country and a random app-instance ID. Advertising identifiers and ad personalization are disabled. Product analytics can be turned off in Settings.
Health permissions stay specific#
If you connect Apple Health or Health Connect, you choose each category Calk can read. That can include weight, activity or body data used for a starting estimate. The health data is processed on your device; Calk does not write data back to the health store.
You can revoke those permissions in Calk or in the operating-system settings.
No ads and no sale of your data#
Calk has no advertising. It does not sell personal data and does not use food or weight data to target ads.
The website has separate, consent-based analytics. Google Analytics loads only after you choose Allow analytics, and you can change that choice through Analytics settings in the footer. The full retention periods are in the Privacy Policy.
Export and deletion#
- Export: You can export a Nutrition Report as a PDF from the app.
- Delete: Use Settings → Delete account to remove the account and erase on-device food, weight and target data.
- Support: If deletion in the app fails, email support@calk.me.
Because the core nutrition data never reaches Calk’s servers, Calk cannot retrieve or export it for you. The app’s export and deletion controls act on the copy stored on your device.
For the exact recipients, legal bases, retention periods and regional rights, read the Privacy Policy.


