• Effective date: June 15, 2026
• Last updated: June 15, 2026

Hydrate ("we", "us", or "the app") is published by Vir Ventures. This policy explains what information the app collects, how it is used, and the choices you have.

If you have questions about this policy, contact us at [email protected].

1. Information we collect

1.1 Information you provide

• Names and profile details for family members you create inside the app (e.g. "Sarah", "Dad"). Family features may be disabled in some builds; when enabled, the same rules apply.
• Daily hydration goals and custom drink vessels you configure.
• Water intake logs — the amount, time, and drink type for each entry you record.
• Widget preferences — such as the amount logged when you tap the iOS Home Screen widget.

We do not ask for your real name, email address, phone number, date of birth, location, or any government identifiers. During onboarding you may enter a display name for your profile inside the app; if you do, that name is also stored on your anonymous Firebase Authentication account (see §3).

1.2 Information collected automatically

• An anonymous user identifier generated by Firebase Authentication. This identifier is randomly generated and is not linked to any personal information you provide. The same identifier is passed to Firebase Analytics so usage can be measured per install.
• Usage analytics via Firebase Analytics, including:
  • Screen views (e.g. Home, History, Settings, Onboarding).
  • Feature interaction events (e.g. water logged, goal met, tab selected, onboarding steps completed, custom vessel added or removed, log deleted, local data reset).
  • Numeric parameters attached to some events, such as water amounts in millilitres, your daily goal, whether a drink was water or a custom vessel, and onboarding step names.

Analytics events do not include family member names, drink vessel names, or the full contents of your intake history. They may include aggregate counts (e.g. how many family members were added during onboarding).

The app does not currently collect crash reports through Firebase Crashlytics or a similar crash-reporting service.

1.3 iOS Home Screen widget

On iOS, Hydrate offers an optional Home Screen widget. To display your progress and let you log water from the widget, the app shares a limited set of data with the widget extension through Apple's App Group container on your device:

• A widget snapshot (today's intake total, daily goal, quick-add amounts, active member identifier, and last-updated timestamp).
• Access to the same local SQLite database that stores your logs, so entries added from the widget are saved on your device.