Duct Capacity Calculator does not require an account and does not collect personal data.
No analytics or tracking
The app does not use analytics, advertising SDKs, tracking, or third-party data sharing.
No backend service
The app is designed to work offline. Calculations are performed on your device and are not sent to a server.
On-device settings and history
App settings are stored on your device. Saved calculation history, if you choose to use it, also stays on your device.
Support email
If you email support, the information you send is used only to respond to your request.