Privacy Policy

Last updated: October 15, 2026

This Privacy Policy explains how AquaVital (“we”, “our”, or “us”) handles information when you use the AquaVital applications for iPhone, iPad, Apple Watch, and Mac (the “App”) and related services (the “Service”). Please read it carefully. By using the App, you acknowledge this Policy. If you do not agree, please stop using the App.

This Policy should be read together with our Terms of Use.

1. Who we are

AquaVital is a personal hydration tracking app. You can use core features without creating an account. For privacy questions, contact tonyang1189@proton.me.

2. Information we process

We design AquaVital to keep most data on your device. Depending on the features you enable, the following categories may be processed:

Category Examples Where it is stored / processed
Hydration activity Water/drink logs, saved effective water amounts, timestamps, beverage names, base and effective goals, Daily Plan context, active hours, quick actions, reminder ownership and bounded delivery coordination On your device (including App Group storage shared with supported extensions)
App preferences Language, appearance, onboarding status, Live Activity preference, local free-log allowance counters, and Pro entitlement flags cached locally On your device
Apple Health data (optional) Dietary water samples you choose to sync Apple Health / HealthKit on your device and Apple’s Health ecosystem under Apple’s terms; AquaVital reads/writes only with your permission
iCloud sync data (optional, Pro) Hydration entries, goals, deletion markers, bounded Daily Plan preferences, quick actions, and reminder delivery coordination needed for sync Separate AES-GCM encrypted hydration and experience envelopes in your iCloud key-value store; their 256-bit key is stored separately in synchronizable iCloud Keychain
Purchases AquaVital Pro subscription or lifetime purchase status Processed by Apple In-App Purchase / StoreKit; we receive entitlement status through Apple APIs, not your full payment card details
Exported files (optional; Pro on iPhone/iPad, free on Mac) CSV export of hydration history you generate Created on your device; you choose where to share/save it (e.g. Files, Mail)
Support communications Email content you send to our support address Our email inbox used to respond to your request

AquaVital does not require an AquaVital user account, and does not ask for your name, email, or phone number to use the App (except if you voluntarily email support).

3. Permissions and optional integrations

AquaVital’s core logging does not require Camera, Photo Library, Contacts, Location, Microphone, or Tracking (ATT) permissions.

Weekly reviews and connection observations. Reviews are calculated locally from saved records and saved daily goals, including any Health daily totals already imported. They do not fetch a full historical week from Health. Report caches and recent query, write, submission, reconciliation and merge times are held in memory for the current app session; they do not establish delivery to another device. CSV files contain saved effective water in ml; original drink volume and historical beverage-factor snapshots are not stored.

4. How we use information

We use the information above to:

We do not sell your personal information. We do not use your Health data for advertising.

5. Sharing and third parties

Website analytics. This website loads Vercel Web Analytics and records page visits and interactions such as language changes and download or contact link clicks. This website instrumentation is separate from the App and does not receive your App hydration records or Health data. Hosting and analytics operate under Vercel’s privacy policy.

6. Data retention

7. Security

We use reasonable technical and organizational measures appropriate to an on-device-first app, including reliance on iOS and macOS sandboxing, App Group isolation, AES-GCM encryption before optional iCloud transport, a separate synchronizable Keychain key, and Apple platform security for Health, iCloud, and purchases. No method of storage or transmission is 100% secure.

8. Children

The App is not directed to children. If you believe a child has provided personal information to us through support email, contact us and we will take appropriate steps to delete it. Minors should use the App only with a parent or guardian’s guidance where required by local law.

9. International users

AquaVital is offered via the Apple App Store. Depending on your device settings and enabled Apple services (such as iCloud), data may be processed in regions where Apple operates. If you use the App outside your home country, you understand that platform processing may involve cross-border transfers controlled by Apple for those system services.

10. Your choices and rights

Depending on your jurisdiction, you may have rights to access, correct, delete, or restrict processing of personal data. For AquaVital:

Purchase and subscription billing records are controlled by Apple; for refunds or invoice questions, use Apple’s support channels.

11. Health disclaimer

Hydration goals and insights are general wellness tools, not medical advice. Do not use the App as a substitute for professional medical judgment.

12. Changes to this Policy

We may update this Privacy Policy from time to time. The “Last updated” date will change when we do. Material changes will be reflected by updating the Policy bundled in the App and/or through in-App notice where appropriate. Continued use after an update means you accept the revised Policy, except where applicable law requires otherwise.

13. Contact

Privacy requests or questions: tonyang1189@proton.me