Matje Privacy Policy

Overview

Matje is an offline building material and room estimation utility developed by Saifullah Ahad. It computes dimensions, surface cutouts, pattern waste, and multi-layer installation requirements directly on your Android device.

Zero Data Collection

Matje does not send project information, location data, usage statistics or device identifiers to the developer. There are no advertising SDKs, third-party trackers or analytics packages embedded in the application. Information you enter is stored locally to support your projects.

Network & Connectivity

Matje does not require an Internet connection and does not request network permissions. If you choose to export or share a project, the selected document provider or receiving app controls that copy and may use its own network connection.

Local Storage

Projects, room measurements, openings, material choices, unit prices and settings are stored in the app's private storage on your device. Project records use a Room/SQLite database; Matje does not add database encryption. Android's app sandbox restricts ordinary access by other apps. Matje does not synchronize these records with a cloud server, and app backup and transfer are disabled.

You can remove saved projects in the app. Clearing app storage or uninstalling removes app-local projects and settings. Copies already exported to a provider or shared with another app must be removed at that destination.

Exported Files

When you export project summaries as text or PDF shopping lists, the resulting document is saved to the local storage location you designate via the standard Android system file picker or shared via system intents. Matje accesses only the destination you explicitly authorize.

Children's Privacy

Matje has no account, social features or developer-operated collection of children's personal information. Room and project information entered by a user is processed on that user's device.

Contact Information

If you have questions or inquiries regarding this privacy policy, contact the developer at [email protected].