Privacy

Hydraulic Structures Pro collects nothing. Your calculations stay on your device.

What the app collects

Nothing. The app has no accounts, no advertising, no analytics and no tracking, and it makes no network connections of its own.

What stays on your device

• The calculations you save, with their names and inputs
• Your choice of default units

These are kept in the app's own storage on the device and are removed when you delete the app. They may be included in your device's backups, which Apple handles under your Apple Account settings.

Reports you share

A PDF report leaves the app only when you export it, through the iOS share sheet, to the place you choose.

Hydrostruct for Android

Hydrostruct, the Android edition of this app, works the same way and collects nothing. It asks for no permissions and has no internet access. Your saved calculations and your choice of default units are kept in the app's own storage on the phone, may be included in your device's backups under your Google Account settings, and are removed when you uninstall the app. A PDF report leaves the app only when you share it through the Android share sheet.

This website

The website uses no cookies and no analytics. Like any website, its host keeps ordinary server logs.

Changes

If a later version of the app changes any of this, this page will say so before that version is released. Last updated 24 October 2026.

Questions

Email support@syncster.dev.