Great Pyramid 11:7 — Privacy Policy

Developer: Prylski (Michał Przybylski, Poland, EU) · Contact: prylski.dev@gmail.com
Effective date: 29 September 2026 · Package: dev.prylski.pyramid

Great Pyramid 11:7 is an offline, interactive 3D geometry laboratory about the Great Pyramid and the 11:7 proportion. It works entirely on your device. This policy explains how the app handles information: in short, it does not collect, store, or share any personal data.

What the app does not do

• No collection of personal data — the app does not ask for, collect, or process your name, email address, contacts, location, photos, device identifiers, or any other personal information.
• No network access — the app does not request the Android INTERNET permission and does not send or receive data over the network. All content, 3D models, and textures are bundled with or generated by the app on your device.
• No user accounts or sign-in, and no developer server or cloud backend.
• No advertising, analytics, crash reporting, tracking, or third-party SDKs of that kind (no Firebase, no ad networks).
• No sharing or selling of data to anyone, because no data is collected.

Data stored on your device

• The app may remember your interface language choice (English or Polish) in the app's private storage on your device, so it opens in the same language next time.
• Other lab settings (selected model, display toggles, sliders) are kept in memory only while the app is running.
• This information never leaves the app through any action of the app itself. Like other app data, it may be included in your device's own Android backup if you have enabled that in your system settings; such backups are managed by your device and Google account, not by the developer.

Permissions

The app requests no special permissions: no internet, camera, microphone, location, contacts, storage, or Bluetooth access.

Retention and deletion

You can remove all locally stored app data at any time by clearing the app's storage in Android settings or by uninstalling the app.

Children

The app does not collect personal information from anyone, including children.

Your rights (EU / GDPR)

Because the developer does not collect or hold any personal data from the app, there is no personal data to access, correct, or delete on the developer's side. If you have any questions, you are welcome to get in touch.

Changes

If the app's data practices ever change, this policy will be updated and the effective date above will be revised.

Contact

Questions about privacy: prylski.dev@gmail.com
Prylski — Michał Przybylski, Poland, European Union