Privacy Policy

1. Who we are

This Privacy Policy applies to the mobile application VitaminHelper and this website, developed and operated by Yaroslav Pisotskyi ("we", "us", "I"), an individual developer based in Kyiv, Ukraine.

Contact: vitaminhelper.app@gmail.com

For GDPR and UK GDPR inquiries, contact us at the email above. We do not appoint a separate EU representative as we are not required to do so under current thresholds.

2. Scope

This policy covers VitaminHelper on iOS and Android and pages on this marketing website (including the blog). It does not cover other apps by the same developer.

3. What data we collect

3.1 Account and technical data

• Account data: name, email, profile photo (if provided by Google or Apple Sign-In), user ID. Email/password registration is also supported.
• Device & technical data: device model, OS version, app version, crash reports, analytics events, push notification tokens.
• Subscription data: subscription status, product identifiers, purchase history (processed by RevenueCat / Google Play Billing / App Store).
• App settings: language preference, notification settings, meal reminder times.

3.2 Health-adjacent data you provide

• Onboarding quiz answers: age, sex, weight, health goals, symptoms.
• Uploaded lab test files and photos (blood work, medical reports).
• Symptoms and health-related text you enter in chat.
• AI chat history and saved supplement recommendations.
• Saved vitamin courses, reminder schedules, intake logs.
• Weekly wellness check-in responses (for example mood, energy, sleep).

You can use some features without signing in. AI features, lab upload, and cloud sync require an account.

3.3 This website

The static marketing site does not require an account. Your browser may send standard server logs (IP address, user agent) to the hosting provider (GitHub Pages). We do not run advertising cookies on this site.

4. How we use your data

• Provide the service (contract / legitimate interest): authenticate you, sync data, deliver tracker, reminders, and knowledge-base features.
• AI features (consent where required): generate supplement suggestions, lab-reading assistance, chat responses, and personalized onboarding.
• Analytics & stability (legitimate interest): improve performance, fix crashes, understand usage patterns.
• Support (legitimate interest): respond to requests and deletion inquiries.
• Legal compliance (legal obligation): comply with applicable laws and store requirements.

We do not sell your personal information.

5. AI processing

VitaminHelper uses Google Gemini to generate supplement suggestions, assist with reading uploaded lab files, power the in-app chat assistant, and personalize onboarding.

• Your prompts and relevant context (quiz answers, lab files or photos, chat messages, current tracker contents as needed) are sent to the AI provider to generate responses.
• We use API services configured so that your data is not used to train AI models by default, according to the provider's API data-usage policies.
• AI inputs and outputs are stored in our Supabase database to provide history and sync across devices.
• Processing health and lab data via AI requires your explicit consent on first use of AI features. You may withdraw consent in Settings.

6. Storage & security

On your device

• The app caches profile, tracker, and settings locally (AsyncStorage or equivalent).
• Local data remains until you delete the app, clear app data, delete your account, or sign out.

In the cloud

• Account data, tracker content, lab files, chat history, and settings are stored in Supabase (PostgreSQL + Storage).
• Authentication is handled by Supabase Auth.

Data is transmitted over encrypted connections (HTTPS/TLS). Android app backups are disabled where configured (allowBackup="false").

7. Third parties

We share data with service providers only as needed to operate the app:

• Supabase — auth, database, file storage. Privacy Policy
• Google Gemini — AI chat, lab-reading assistance, course suggestions. Privacy Policy
• Google — Firebase Analytics, Crashlytics, Cloud Messaging, Sign-In. Privacy Policy
• Apple — Sign in with Apple (iOS). Privacy Policy
• RevenueCat — subscription management. Privacy Policy
• Amazon Associates / iHerb — outbound affiliate links only. We do not share your personal data with these retailers when you tap a product card.

We do not currently serve in-app advertising (AdMob) in VitaminHelper. If that changes, we will update this policy and store privacy labels before enabling ads.

8. Data retention

• Account and app content: stored while your account is active. Deleted within 30 days after a verified deletion request.
• Local cache: until app deletion, storage clear, or sign out.
• Analytics: per provider policies (typically up to 14 months for Google Analytics).
• Subscription records: retained as required by tax and accounting laws.
• Support emails: up to 12 months after resolution.

9. Your rights

9.1 GDPR / UK GDPR (EEA & UK users)

You have the right to access, rectify, erase, restrict processing, data portability, object to processing based on legitimate interests, withdraw consent, and lodge a complaint with your local supervisory authority.

9.2 CCPA / CPRA (California residents)

You have the right to know, delete, and correct personal information, limit use of sensitive personal information (health and lab data in VitaminHelper may qualify as sensitive PI under CPRA), opt out of sale or sharing (we do not sell personal information), and non-discrimination for exercising your rights.

Do Not Sell or Share My Personal Information: We do not sell your data. Email vitaminhelper.app@gmail.com with subject "Privacy Request".

10. How to delete your account

In the app:

1. Open VitaminHelper and sign in.
2. Go to Settings.
3. Tap Delete account and confirm.

We process deletion within 30 days, removing account data, tracker content, lab files, chat history, and cloud records.

By email: send a message to vitaminhelper.app@gmail.com with subject "Delete my data" from the email linked to your account.

You can delete individual chat threads or tracker items in the app without deleting your full account.

11. Children

VitaminHelper is intended for users aged 18 and older. We do not knowingly collect data from anyone under 18. The app processes health-adjacent data and is strictly for adults. If you believe a minor has provided data, contact us and we will delete it promptly.

12. Health disclaimer

13. Apple App Store compliance

• App Privacy Details: Our App Store privacy labels reflect data collected as described in this policy.
• Required Reason APIs: We use Apple APIs only for declared purposes (for example file timestamps for cache management, UserDefaults for settings).
• Account deletion: In-app account deletion is available in Settings as required by App Store Review Guidelines.
• We do not currently request App Tracking Transparency for advertising because VitaminHelper does not serve ads.

14. Google Play compliance

• Our Google Play Data Safety form declarations match the practices in this policy.
• Health apps policy: VitaminHelper is a wellness app. We disclose health-related data collection and provide disclaimers.
• Account deletion: In-app deletion and email deletion are both available.
• Permissions: camera/photos for lab uploads, notifications for vitamin reminders. We do not collect precise location.

15. EU Digital Services Act (DSA) / DMA

EU users may report illegal content or raise concerns by emailing vitaminhelper.app@gmail.com (subject: "DSA Report"). We will acknowledge reports within 7 days and respond within applicable timeframes.

16. International transfers

Your data may be processed outside your country of residence (including the United States, where Supabase and Google servers may be located). Where required, we rely on Standard Contractual Clauses (SCCs) and equivalent safeguards provided by our service providers.

17. Changes to this policy

We may update this Privacy Policy. Material changes will be communicated via the app or email where appropriate. The "Last updated" date reflects the current version. Continued use after changes constitutes acceptance.

18. Contact

Yaroslav Pisotskyi
Kyiv, Ukraine
Email: vitaminhelper.app@gmail.com

We aim to respond to privacy requests within 30 days.

See also our Terms of Use.