Privacy Policy

1. Who We Are

JustCalories is an iOS application developed and operated by Ievgen Mykhailov ("we", "us", or "our"). If you have any questions about this policy, contact us at [email protected].

2. What Data We Collect and Why

Food Photos

When you log a meal, you can take a photo with your camera or choose one from your photo library. That image is sent to our AI service at justcalories.app solely to estimate the meal's calories and macronutrients. We do not store your photos on our servers beyond the time required to process the request. Photos you have already logged are stored on-device in the app's private container.

Apple Health Data

With your permission, JustCalories reads the following from Apple Health:

• Active and basal calories burned (to show your energy balance and tailor AI coaching and meal suggestions)
• Dietary calorie and macronutrient samples you have previously logged
• Body weight (offered only as a suggestion when you set up your goals; it is saved solely if you tap "Use" to confirm it)

JustCalories writes the following to Apple Health when you log a meal:

• Dietary energy (calories)
• Dietary protein, fat, and carbohydrate (grams)

Apple Health data is processed on your device and governed by Apple's privacy framework. We do not store your Apple Health data on our servers, and we never store it in iCloud.

To generate the personalized coaching and meal suggestions you ask for, a summary figure derived from Apple Health — specifically your daily calories burned — may be sent to our AI service (OpenAI, via justcalories.app) together with the meals you logged in the app. This is used only to produce the suggestion you requested: it is processed transiently, is not retained by us, and is never used for advertising, marketing, or data mining. If you set your burned energy manually instead of using Apple Health, no Apple Health data is involved.

App Preferences

We store your goals, body metrics (height, age, biological sex, and confirmed weight), dietary preferences, and display settings. These are saved on your device and, when iCloud is enabled, synchronized across your own devices through Apple's iCloud key-value storage. Raw Apple Health readings are never written to iCloud — only values you have entered or confirmed yourself. These preferences are not sent to our servers.

3. Data We Do Not Collect

• We do not require account registration or collect your name, email address, or any identifier.
• We do not use advertising networks or analytics SDKs.
• We do not track you across other apps or websites.
• We do not sell, rent, or share your data with third parties for marketing purposes.
• We do not collect your location.
• We do not collect device identifiers (IDFA, IDFV) for tracking.

4. How Your Data Is Stored

All meal records and logged nutrition data are stored locally on your device using Apple's SwiftData framework. Meal photos you have logged are stored in the app's private on-device container. No meal records or photos are uploaded to or stored on our servers.

If you delete the app, all locally stored data is deleted from your device. Any nutrition samples written to Apple Health remain there and must be removed through the Health app if you wish to delete them.

5. Third-Party Services

JustCalories uses the following third-party service to process meal photos and to generate nutrition coaching and meal suggestions:

• OpenAI (via our backend at justcalories.app) — meal photos are analysed by an AI model to estimate nutritional content. For the coaching and meal-suggestion features, summary nutrition context — your calories consumed and burned and your macro totals for the day (your daily calories burned may originate from Apple Health) — is also sent to generate the response you requested. OpenAI's data handling is governed by OpenAI's Privacy Policy. We operate our own stateless backend that proxies these requests; we do not pass any personal identifiers, and this context is not stored on our servers.

No other third-party SDKs, analytics services, or advertising networks are included in the app.

6. Children's Privacy

JustCalories is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us and we will take steps to delete it.

7. Your Rights

Because JustCalories does not collect personal data on our servers, there is no account or profile to request access to or deletion of. All data the app generates lives on your device and in Apple Health, both of which you control directly.

If you have questions or concerns, contact us at [email protected].

8. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. Continued use of the app after changes are posted constitutes your acceptance of the updated policy.

9. Contact

Ievgen Mykhailov
[email protected]