Privacy Policy

This Privacy Policy describes how Meniere's: Symptom Tracker ("we", "us", "our") handles information when you visit this website or use the Meniere's: Symptom Tracker iOS app. We follow a simple rule: collect as little as possible, never sell or share your health data, and be explicit about anything that leaves your device.

1. Information we do not collect

• We do not collect your symptom notes, journal entries, attack severity, duration, or medication data.
• We do not collect your precise location.
• We do not collect your name, email address, or Apple ID through the app.
• We do not use third-party advertising SDKs or health-data brokers.

2. Information we do collect

On this website

• Basic analytics (page views, country, referrer) via a privacy-respecting analytics provider. No cookies used to identify you personally.
• Email address if you voluntarily subscribe to updates via our Tally form. See section 4.

In the app

• Symptom data you enter — stored locally on your device, optionally backed up to your private iCloud account if you enable it in iOS Settings.
• Crash and diagnostic data via Apple's standard system, only if you opt in on your device.
• Anonymous risk-prediction signals — see section 3.

3. Anonymous risk-prediction signals

To power the app's attack-risk prediction feature, a daily snapshot of aggregated trigger signals is sent to Apple's CloudKit public database. These snapshots are used exclusively to train and retrain the prediction model. Because they contain only an anonymous random UUID and aggregated numerical values, they are not personally identifiable.

Included:

• Aggregated daily values: salt level, sleep hours, stress (1–5), caffeine yes/no, alcohol yes/no
• 3-day and 7-day trailing averages of the above
• Barometric pressure and short-term pressure change at your general area
• Whether an attack occurred that day (yes/no) and the count of recent attacks
• Day of week and month for seasonal patterns
• An anonymous random UUID, not linked to your Apple ID

Never included:

• Your name, email, Apple ID, or any direct identifier
• Your notes, journal entries, or free-text content
• Your precise location
• Medications, attack severity, attack duration, or symptom details

This collection is integral to the prediction feature and is not user-configurable. Data travels over Apple's encrypted CloudKit transport.

4. How we use information

We use the limited information we collect to: keep the website online and fix issues, send email updates you opted into, respond to your support requests, improve the app, and train the on-device attack-risk prediction model described in section 3. We do not sell, rent, or share your personal data with advertisers or data brokers.

5. Email updates (Tally)

If you submit your email on this site, it is stored via Tallyand may be synced to an email delivery service for broadcast emails. You can unsubscribe from any email we send in one click. We will never share your email with a third party.

6. Cookies

We use only essential cookies required for the site to function. We do not use cross-site tracking cookies.

7. Children

This service is not directed to children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us information, please contact us and we will delete it.

8. Your rights

You have the right to access, correct, or delete any personal information we hold about you, and to opt out of email communications at any time. To exercise any of these rights, email us at email our support team.

9. Changes to this policy

We may update this policy to reflect changes in our practices or legal requirements. Material changes will be indicated by updating the "Last updated" date above.

10. Contact

Questions about privacy? Email email our support team.