HYDRO DOTS

Privacy Policy

Last updated: 2026-08-24

Hydro Dots ("the app") respects your privacy. This policy explains what the app does with your information.

1. There is no server

The app requires no account, and the developer operates no server. Your drink records, goals and settings are stored on your device. The developer cannot read or retrieve them. Section 3 covers what happens if you switch iCloud sync on.

2. What is stored on your device

Deleting the app removes all of it from your device.

3. iCloud sync

Only if you hold Pro and switch sync on in the app, your records, drink kinds and each day's goal are synced through Apple's iCloud (CloudKit) between devices signed in to the same Apple ID. It is off by default, and you choose per device whether to switch it on.

The data sits in a private database that Apple manages for this app; the developer cannot read or retrieve it. Body weight, goal settings, notifications and the theme are not synced and stay on each device. Switching sync off stops that device from sending further changes to iCloud.

4. Health (HealthKit)

Only with your permission, and only for the purposes below. The app works if you decline.

Health data stays under Apple's control; the app never sends it off the device. You can revoke access at any time in Settings > Privacy & Security > Health.

5. Location and weather

If automatic goal adjustment is on, your location is used to look up temperature, humidity and UV index through Apple's WeatherKit. It is used for that request only; it is never sent to the developer and never stored off the device. If you do not use automatic adjustment, no location permission is needed.

6. Notifications

Reminders are local notifications composed and delivered entirely on your device. No push server is involved.

7. Game Center

Achievements use Apple's Game Center. If you take part, your achievement progress is sent to Apple's servers and handled under Apple's privacy policy. The app works without signing in to Game Center.

8. Advertising

The app shows banner ads on the History and Recap screens, served by Google AdMob. To deliver them, the following may be sent to Google LLC:

You choose whether to allow tracking in the prompt shown on first use, and can change it later under Settings > Privacy & Security > Tracking. Declining does not remove ads — it only makes them less relevant. See Google's policy for details.

Buying Pro stops the banner, and with it the sending of the information above for advertising.

9. Usage and crash measurement

To find problems and improve the app, usage is measured anonymously with Google's Firebase Analytics. What is sent is aggregate-level activity — which screens are opened, which features are used. Your records themselves — amounts, body weight, goals — are never sent. The developer sees only figures that cannot identify a person.

Firebase Crashlytics is included as well. If the app crashes, it sends what is needed to track the cause down — where execution stopped, the device model, the OS version. Your drink records are not part of it either.

10. In-app purchases

Apple handles every purchase, Pro and tips alike. The developer never receives your name, card details or Apple ID. The app records only whether you hold Pro, and it keeps that on your device. That record sits in a shared area so the widget can read it too; it never leaves the device.

11. Children

Because the app collects no personal information, it makes no distinction by age. Goal figures are guidance only and are not medical advice.

12. Changes to this policy

Any change will be published here with a new "last updated" date. Significant changes will also be announced in the app.

13. Contact

Questions about this policy: humek.dev+hydrodots@gmail.com