Privacy policy

Effective: 25 October 2026

Simple Macro counts protein, fat and carbs. We process as little data as possible: your profile, your kids’ profiles, meals and training are stored only on your phone. We don’t run user accounts and don’t keep this data on our servers.

1. Controller

The controller is JFK Design Katarzyna Haratyk-Jagiellicz, ul. Wieniawskiego 18, 41-506 Chorzów, Poland, Polish tax ID (NIP) 6271824348. Privacy contact: support@simplemacro.pl.

2. What data and why

Stored only on your phone

Sex, age, height, weight, activity and goal; kids’ profiles (first name or nickname, sex, age, height, weight, activity, diet and allergies); logged meals; training sessions and events; settings. Used to calculate daily targets and show progress. Deleting the app deletes this data.

Sent for processing when you use a feature

Voice recordings — sent through our server to ElevenLabs for speech-to-text.
Meal descriptions, meal or fridge photos and the necessary context (daily targets, what’s been eaten, time of day; for a child — first name, age, sex, training, diet and allergies) — sent through our server to Anthropic (Claude) to estimate macros, write the daily summary or suggest meals.
Reply text you choose to listen to — sent to ElevenLabs for text-to-speech.

Our server forwards this data and returns the result. We don’t store recordings, photos, meal descriptions or replies. We only store technical usage data: time, feature, response time, number of processed tokens and cost — no content and no IP address.

Subscription

Payments are handled by Apple (App Store) or Google (Google Play) — we never see your card or payment account. We use RevenueCat to manage subscriptions: the app and our server send it a random customer ID (no name or email), and RevenueCat receives purchase details from the store (plan, dates, status, country, price) and confirms whether the subscription is active. Our server checks this before every AI feature.

IP address and server logs

Your IP address and customer ID are processed briefly to protect the service from abuse (rate limits). Server logs may contain IP addresses and are deleted automatically within 14 days.

3. Legal basis

performance of the service contract (Art. 6(1)(b) GDPR);
explicit consent (Art. 9(2)(a) GDPR) for nutrition, weight and allergy data that may count as health data — you give it by using these features and can withdraw it by stopping use and deleting the app;
legitimate interest (Art. 6(1)(f) GDPR) — service security and cost accounting.

4. Children

The app is intended for adults. Kids’ profiles are created and managed by a parent or guardian, who decides what to enter. We recommend using a first name or nickname. The app never sets weight-loss goals for children.

5. Recipients

Anthropic, PBC (USA) — Claude language model; data sent via the API is not used to train models under Anthropic’s commercial terms.
ElevenLabs (USA) — speech-to-text and text-to-speech.
Hostinger (EU) — the server requests pass through.
RevenueCat, Inc. (USA) — subscription management and checking whether a subscription is active.
Apple / Google — app distribution and payments, under their own policies.

Transfers to the USA rely on standard contractual clauses or the EU–US Data Privacy Framework.

6. Retention

Data on your phone — until you delete it or the app. Content sent for processing — not stored by us; providers may keep it briefly under their policies. Technical usage data — up to 24 months. Logs with IP addresses — up to 14 days.

7. Your rights

You have the right to access, rectify, erase, restrict, port and object to processing of your data, and to withdraw consent. As we don’t keep your data on a server, you control most of it directly on your phone. You may also lodge a complaint with a data protection authority (in Poland: Prezes UODO, ul. Stawki 2, 00-193 Warszawa).

8. Not medical advice

Values are estimates. The app does not replace a doctor or dietitian. For medical conditions, allergies or questions about your child’s nutrition, consult a professional.

9. Changes

We’ll announce material changes in the app or on this page.