Privacy Policy

HydroMind ("HydroMind," "we," "us," or "our") operates the HydroMind iOS application and the website at www.hydromindapp.com(collectively, the "Services"). This Privacy Policy explains what information we collect, how we use it, and the choices you have.

By using the Services, you agree to the collection and use of information in accordance with this policy. If you do not agree, please do not use the Services.

1. Information we collect

1.1 Information you provide in the app

HydroMind is designed to minimize data collection. Depending on how you use the app, you may provide:

• Hydration logs (amount, time, and beverage type you choose to record)
• Profile inputs used to personalize your daily goal (such as weight, activity level, or preferences you set in the app)
• Reminder and notification preferences

Your hydration logs and profile inputs are stored on your device — we do not operate an account system and this data is not uploaded to our servers. When you enable Apple Health integration, hydration data you choose to read or write is handled through Apple's HealthKit framework as described below. Separately, the advertising SDK used in the free tier collects device-level information as described in section 1.5.

1.2 Apple Health (HealthKit)

If you connect HydroMind to Apple Health, the app may read and/or write water intake data to your Health app, subject to the permissions you grant in iOS. We access only the Health data types you approve.

• Health data accessed through HealthKit is used to display your progress, sync across your Apple devices, and improve your in-app experience.
• We do not use HealthKit data for advertising, and we do not sell HealthKit data.
• You can revoke access at any time in Settings → Health → Data Access & Devices.

Apple's handling of Health data is governed by Apple's privacy policy and your device settings.

1.3 Information collected automatically on the website

When you visit our marketing website, we and our hosting/analytics providers may automatically collect:

• Device and browser type, operating system, and language
• Pages viewed, referring URL, and approximate geographic region (derived from IP address)
• Date and time of visits

We use Vercel Analytics and Vercel Speed Insights to understand site performance and aggregate traffic. These services are designed to be privacy-friendly and do not use cookies for cross-site tracking on our behalf. Vercel may process limited technical data as described in Vercel's Privacy Policy.

1.4 Communications

If you email us at support@hydromind.app, we receive your email address, message content, and any information you choose to include so we can respond.

1.5 Advertising in the free version of the app

HydroMind is free to use and supported by advertising. The free tier displays banner and occasional full-screen ads served by Google AdMob. Purchasing HydroMind Pro removes all advertising permanently — once Pro is active the app makes no further ad requests.

To serve those ads, the Google Mobile Ads SDK may collect and process:

• Device identifiers, including the Identifier for Advertisers (IDFA) where you permit tracking
• Device and app information such as model, operating system version, and app version
• IP address, and coarse location derived from it
• Ad interaction data, such as impressions, taps, and whether an ad was closed

This processing is governed by Google's Privacy Policy. See also how Google uses information from sites or apps that use its services.

Your control over ad tracking. On first use, HydroMind asks for your permission through Apple's App Tracking Transparency prompt. If you decline — or never respond — the app requests non-personalised ads only, which are selected using general context rather than your advertising identifier. You can change this at any time in Settings → Privacy & Security → Tracking. In the EEA and UK we also present a consent form through Google's User Messaging Platform before any personalised advertising.

Health data is never used for advertising. Hydration logs, Apple Health data, your goal, and your profile inputs are not included in ad requests, are not shared with Google or any advertising network, and are not used for ad targeting or measurement.

2. How we use information

We use information to:

• Provide, maintain, and improve the HydroMind app and website
• Calculate personalized hydration goals and pacing
• Send local notifications and reminders you enable on your device
• Sync data with Apple Health when you opt in
• Analyze aggregate website usage to improve content and performance
• Serve and measure advertising in the free version of the app
• Respond to support requests and protect against abuse or security issues
• Comply with legal obligations

3. How we share information

We do not sell your personal information. We may share information only in these circumstances:

• Service providers — such as hosting (Vercel), analytics, and email — who process data on our instructions and under contractual confidentiality obligations
• Apple— when you use HealthKit, Apple Health, iCloud, or the App Store, as governed by Apple's terms and policies
• Google (AdMob) — device and ad-interaction data used to serve advertising in the free version of the app, as described in section 1.5. This never includes hydration or Apple Health data
• Legal requirements — if required by law, regulation, legal process, or to protect rights, safety, and security
• Business transfers — in connection with a merger, acquisition, or sale of assets, with notice where required by law

4. Data retention

App data stored on your device remains until you delete it or uninstall the app. Data in Apple Health remains according to your Health app settings. Website analytics are retained in aggregated form according to our providers' retention schedules. Support emails are kept as long as needed to resolve your inquiry and for reasonable business records.

5. Security

We implement reasonable administrative, technical, and organizational measures designed to protect information. No method of transmission or storage is 100% secure; we cannot guarantee absolute security.

6. Your choices and rights

Depending on where you live, you may have rights to:

• Access, correct, or delete personal information we hold about you
• Object to or restrict certain processing
• Withdraw consent where processing is consent-based
• Port data you provided in a structured format, where applicable
• Lodge a complaint with a supervisory authority (EEA/UK users)
• Opt out of personalised advertising — decline the App Tracking Transparency prompt, turn tracking off in Settings → Privacy & Security → Tracking, or remove advertising entirely with HydroMind Pro

Because most app data stays on your device, you can delete hydration logs in the app, disconnect Apple Health, or uninstall HydroMind to remove local data. For website or support-related requests, contact support@hydromind.app. We will respond within a reasonable timeframe and as required by applicable law.

California residents: We do not sell personal information as defined by the California Consumer Privacy Act (CCPA). California residents may request information about disclosures or exercise applicable rights by emailing us.

7. Children's privacy

The Services are not directed to children under 13 (or the minimum age required in your jurisdiction). We do not knowingly collect personal information from children. If you believe a child has provided us information, contact us and we will take steps to delete it.

8. International users

We are based in the United States. If you access the Services from outside the U.S., your information may be processed in the U.S. or other countries where our providers operate, which may have different data protection laws than your country.

9. Third-party links

Our website may link to third-party sites (for example, the App Store). We are not responsible for their privacy practices. Review their policies before providing information.

10. Changes to this policy

We may update this Privacy Policy from time to time. We will post the revised version on this page and update the "Last updated" date. Material changes may be communicated through the app or website where appropriate. Continued use after changes constitutes acceptance of the updated policy.

11. Contact us

Questions about this Privacy Policy or our data practices:
support@hydromind.app
Website: https://www.hydromindapp.com