Privacy Policy

Last updated: 17 April 2026

Data Collection

Fractune does not collect any personally identifiable information. The app generates an anonymous contributor ID locally on your device, used solely to associate your contributions with the public dataset.

Analysis and Image Processing

All image processing takes place locally on your device. Images are never uploaded to our servers. Only analysis results (D-value), coordinates, and metadata are sent to the public dataset.

Public Dataset

When you analyse a building, you contribute to a publicly accessible dataset via Apple CloudKit. The dataset contains: building name, location (coordinates), D-value, and time of analysis. No personal data is included.

Data Erasure

You may request deletion of all your contributions at any time. Send an email to privacy@fractune.dk with your contributor ID (found in the app under Settings). We will delete all associated data within 30 days.

Third-Party Services

Fractune uses Apple CloudKit for data storage and Apple MapKit JS for map display. These services are subject to Apple's privacy policy.

Contact

Questions about privacy? Contact us at privacy@fractune.dk.