Privacy Policy

This Privacy Policy explains how the Zru & Hudnu mobile app (the “App”, “we”, “us”) collects, uses, and protects your information when you use the App and this website. By using the App, you agree to the practices described here.

If you have any questions, contact us at [email protected] or through our support page.

1. Information we collect

Account information

When you create an account we collect your email address and name. If you choose Sign in with Apple, we receive the identifier Apple provides and, if you allow it, your name and a relay email address. We use this only to create and secure your account.

Profile and nutrition data you provide

To personalise your targets and diary, you may provide details such as your age, biological sex, height, weight, goals, and activity level, as well as the foods, meals, recipes, and portions you log and the resulting calorie and macronutrient (protein, fat, carbohydrate) totals. This information is stored in your account so the App can work across your sessions and devices.

Photos you submit

If you photograph a nutrition label or a meal, the image is processed to read the nutrition information and add it to your diary. If you send a bug report or feedback, any screenshots or media you attach are stored with that report. Photos are used only to provide these features.

Apple Health

With your explicit permission, the App may read activity and energy data from Apple Health to keep your daily targets realistic. This data is used only to calculate your recommendations. We never use Apple Health data for advertising or marketing, we never sell it, and we never share it with third parties for their own purposes. You can revoke access at any time in the iOS Health settings.

Subscriptions and purchases

Premium subscriptions are sold and billed by Apple through your Apple ID. We do not receive or store your payment card details. We use RevenueCat to manage subscription status and verify entitlements; for this purpose a pseudonymous app user identifier and your purchase/transaction status are processed.

Usage, device, and diagnostic data

To keep the App reliable and to understand how it is used, we collect usage events, app version, device model, operating system version, language, and similar technical identifiers through analytics and crash/diagnostic tooling.

2. How we use your information

• To provide, maintain, and personalise the App and your targets;
• To read nutrition labels and meal photos you choose to submit;
• To process and validate subscriptions and entitlements;
• To respond to your support requests and feedback;
• To analyse and improve performance, features, and reliability;
• To protect the security of the App and comply with legal obligations.

3. Legal bases (EEA/UK)

Where the GDPR applies, we process your data to perform our contract with you (providing the App), based on your consent (e.g. Apple Health and analytics where required), and based on our legitimate interests in keeping the App secure and improving it. Health-related data is processed only with your explicit consent. You can withdraw consent at any time.

4. How we share information

We do not sell your personal data. We share data only with service providers who process it on our behalf to operate the App:

• Apple: sign-in, subscriptions, and Health (on your device);
• RevenueCat: subscription and entitlement management;
• Google (Firebase): analytics and diagnostics;
• Google and OpenAI: vision models that read the nutrition labels and meal photos you submit; images are processed to provide the feature and are not used to train those models;
• Amazon Web Services: secure storage of media you upload;
• Railway: application hosting and databases;
• Resend: delivery of support and transactional emails.

We may also disclose information if required by law or to protect the rights, safety, and security of our users and the App.

5. Data retention

We keep your information for as long as your account is active or as needed to provide the App. When you delete your account, we delete or anonymise your personal data within a reasonable period, except where we must retain limited records to comply with legal obligations.

6. International transfers

Our providers may process data in countries outside your own, including the United States. Where required, such transfers are protected by appropriate safeguards such as the European Commission’s Standard Contractual Clauses.

7. Your rights and choices

Depending on where you live, you may have the right to access, correct, delete, or export your personal data, to object to or restrict certain processing, and to withdraw consent. You can:

• Edit your profile and logged data directly in the App;
• Delete your account and associated data from the App’s settings, or by contacting us at [email protected];
• Revoke Apple Health and notification permissions in iOS settings.

To exercise any right, contact us using the details below. You also have the right to lodge a complaint with your local data protection authority.

8. Children

The App is not directed to children under 16, and we do not knowingly collect personal data from them. If you believe a child has provided us with personal data, contact us and we will delete it.

9. Security

We use industry-standard measures to protect your data, including encryption in transit, access controls, and private storage for uploaded media. No method of transmission or storage is completely secure, but we work to protect your information.

10. Changes to this policy

We may update this Privacy Policy from time to time. We will revise the “Last updated” date above and, where appropriate, notify you in the App.

11. Contact us

For any privacy questions or requests, email [email protected] or use our support page.