Construct3D Privacy Policy

1. What data Construct3D processes

Construct3D processes device and interaction data needed to provide the mixed-reality experience. This may include headset position and orientation, controller or stylus input, and optional hand-tracking input.

Construct3D also uses Meta platform services to verify that the current user is entitled to use the application.

If you choose to save a construction, Construct3D stores the saved construction locally on your device so that you can load it again later.

Construct3D does not create a developer-managed user account system for end users and does not store user-created constructions on a developer-operated cloud service.

Construct3D does not request camera or microphone permissions for raw camera-image capture or audio recording. Mixed-reality passthrough is presented through system capabilities provided by the headset platform.

2. How Construct3D uses this data

• To operate the geometry application, including construction, selection, manipulation, and visualization of geometric objects.
• To support optional hand-tracking interaction when available and enabled.
• To verify app entitlement through Meta platform services.
• To save and reload constructions locally on the device when the user explicitly uses the save/load features.

3. Sharing

We do not sell personal data.

We do not upload user-created constructions or geometry work to developer-operated external servers.

Some platform-related information may be processed by Meta as part of app distribution, entitlement verification, store delivery, and platform operation, subject to Meta's own terms and privacy policies.

4. Storage and retention

Saved constructions are stored locally on your device until you delete them, clear the app's local storage, or uninstall the app.

We do not maintain developer-controlled cloud copies of saved constructions or developer-managed online user profiles for end users of Construct3D.

5. Requesting data deletion

All users may request deletion of any developer-controlled data collected from or about them by contacting: hannes.kaufmann@tuwien.ac.at.

Because Construct3D does not maintain developer-controlled cloud accounts or remote storage for user-created constructions, deleting the app or clearing the app's local storage removes locally stored constructions from your device.

If you contact us to request deletion, we will delete any developer-controlled data we have about you, or confirm that we do not maintain such data.

6. Contact

Hannes Kaufmann
Email: hannes.kaufmann@tuwien.ac.at
Project page: https://www.ims.tuwien.ac.at/projects/construct3d