Privacy Policy

1. Your Data Is Yours

Health Check-In is built on a simple principle: your health data belongs to you. We designed the App so that your check-ins, medications, experiments, and insights never exist on our servers. Everything stays on your device, under your control, unless you explicitly choose otherwise.

2. Storage & Control

• On-device storage — All data you enter is stored locally on your device. We cannot see it, access it, or retrieve it.
• No account required — The App does not require you to create an account or provide any personal information. Even entering your first name is optional.
• User-directed backups — You may back up your data to your personal Google Drive or a local file (Pro feature). These connections are direct between your device and your chosen storage — we have no access to these files.
• Health data connections — If you connect a health source (Apple Health, Health Connect, Google Health, or Oura Ring), sleep and step data is read directly from those services to your device. This data is stored locally and is not sent elsewhere, except when you explicitly request an AI analysis.

3. Location, Weather, Air Quality & Pollen

If you enable location-based environmental tracking, Health Check-In may use your device location to retrieve weather, air quality, and pollen information for your check-ins. This information is used to add context to your health journal and help identify possible environmental triggers.

When environmental tracking is enabled, approximate location or coordinates may be sent to a weather, air quality, or pollen provider only to retrieve the requested environmental data. This data is not used for advertising or cross-app tracking.

Location access is optional. Environmental data is stored with your check-ins on your device.

4. AI Analysis (Opt-In Only)

AI-powered health analysis is an optional Pro+AI feature. When you choose to generate an analysis, Health Check-In sends only the information needed to answer your request, such as recent check-ins, notes, tags, experiments, Key Results, routines, medications, supplements, sleep data, steps, HRV, resting heart rate, and environmental context.

This data is sent securely over HTTPS to Health Check-In's proxy and then to Google Gemini for processing. Health Check-In does not store your AI request data on our servers after processing. Google Gemini processes the request according to Google's applicable API terms.

The App is fully functional without AI — it is never enabled without your explicit action.

5. Third-Party Services

We are transparent about every service the App interacts with:

• RevenueCat — Manages premium subscriptions using a random, anonymous ID to verify your purchase status. All transactions are processed through the Apple App Store or Google Play Store. We never see your payment information.
• Aptabase — Privacy-first analytics that collects anonymous, aggregated usage events (e.g. “app opened”, “check-in submitted”). No personal data, health scores, notes, or any content you enter is ever included. Aptabase does not use cookies, does not track users across apps, and is fully GDPR-compliant. Learn more at aptabase.com/legal/privacy.
• Google Health / Oura Ring — The App authenticates via OAuth and stores your access token locally. Sleep and step data is fetched directly from these APIs to your device.
• Apple Health / Health Connect — Data flows directly from these platform APIs to the App on-device. Nothing is sent elsewhere.
• Google Gemini AI — Only when you explicitly request an AI analysis. Data is transmitted over HTTPS and processed. Health Check-In does not retain your request data. Google processes requests according to its applicable API terms.
• Weather, Air Quality & Pollen Providers — When environmental tracking is enabled, approximate location is sent to retrieve weather, air quality, or pollen data. This data is not used for advertising or tracking.
• Google Drive — Only if you use cloud backup. Files are stored in your personal Google Drive, not on our servers.

6. No Advertising or Tracking

Health Check-In contains no advertisements. We do not track your behavior across other apps, do not sell or share your information with third parties for marketing purposes, and do not use advertising identifiers.

7. Why App Store and Google Play Show Privacy Labels

The App Store and Google Play require developers to disclose broad categories of data that an app may access or transmit. These labels can make local, optional, or anonymous features sound broader than they are.

For example, Health Check-In may show categories such as Health & Fitness, Usage Data, Purchases, Identifiers, or App Activity because the app supports health integrations, anonymous analytics, subscription verification, optional backups, and optional AI analysis.

These labels do not mean that we can read your health journal. Your personal check-ins, notes, symptoms, medications, supplements, experiments, routines, Key Results, and imported health data are stored locally on your device by default.

8. Data Deletion

• In-app delete — Permanently wipe all data via Settings → Clear All Data.
• Uninstalling — Removing the App deletes all local data from your device.
• Manual cleanup — Backups you created on Google Drive or local storage are not automatically deleted when you uninstall. Because you own this data, you must delete these files manually if you wish to remove them.

9. Children’s Privacy

Health Check-In is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided data through the App, please contact us and we will promptly address it.

10. Your Rights

• Export — Export all your data at any time as a PDF report or CSV spreadsheet.
• Delete — Clear all data from within the App, or simply uninstall it.
• Disconnect — Revoke health data permissions at any time through the App or your device's system settings.
• Opt out — AI analysis is entirely optional. The App is fully functional without it.

For users in the European Union (GDPR) or California (CCPA), you may request information about or deletion of any data we process by contacting us below.

11. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date. We encourage you to review it periodically.

Contact

Questions about your data or this policy:

privacy@healthcheckin.app