Privacy policy

Mumsa is an app for logging food and following your energy balance. This page explains what data we process, why, and what rights you have. Last updated 2026-09-28.

Controller

Christopher af Bjur, a sole trader in Sweden, is the controller for the processing described here. Contact: support@mumsa.app.

Data we process

Apple Health

Data from Apple Health (HealthKit) is used solely to calculate and show your own energy balance in Mumsa. It is never used for marketing or advertising, never sold and never disclosed to third parties for such purposes. It is not shared with anyone beyond the providers that store it on our behalf (see below). You can turn off access at any time in the Health app under Sharing → Apps and Services.

Why we process the data

Sharing and public pages

Providers and storage

Data is stored with Amazon Web Services in the Stockholm region (eu-north-1): database, image storage (S3 with CloudFront) and email delivery (SES). Data does not leave the EU/EEA. If you sign in with Apple, Apple handles the sign-in under its own terms. We only email you to verify your address, reset your password and send sign-in codes for the AI connector.

Food data

Nutrition figures come from Open Food Facts (Open Database License and CC BY-SA) and Livsmedelsverket, the Swedish Food Agency (CC BY 4.0), complemented by user corrections. This is not personal data, but we want to be clear about where the numbers come from.

How long we keep the data

For as long as your account exists. You delete the account yourself in the app under Settings. That removes the account, profile, meal logs, health data, weight entries, shopping lists, private recipes and uploaded photos. Public recipes are anonymised – the link to you and the photo are removed – because other users may have logged them. If you signed in with Apple, the sign-in is revoked with Apple. Database backups are deleted within 14 days. Server logs are kept for a short time for operations and security.

Your rights

You have the right to access your data, have it corrected, have it erased, receive it in a machine-readable format, restrict or object to processing, and withdraw consent. You correct your profile and content in the app, and you delete in the app. For anything else, email support@mumsa.app. You can also complain to the Swedish Authority for Privacy Protection (imy.se). We make no automated decisions with legal effect; the calorie calculations are guidance, not decisions.

Children

Mumsa is not directed at children. You must be at least 16 to create an account, and we do not knowingly collect data about younger people.

Security

All traffic is encrypted (TLS). Passwords are stored only as hashes, and access to the systems is limited to what operations require.

Changes

We update this page when the processing changes and state the date at the top. For major changes we let you know in the app.