Effective September 2026

Privacy Policy

GravelGauge is designed to calculate without learning anything about you.

Information collection

GravelGauge does not collect personal information or calculator entries. It has no accounts, advertising, analytics, tracking, sensitive permissions or third-party data sharing.

What stays on your device

Your calculator entries remain in the current app session and are not transmitted or persisted. Only your light or dark theme preference is stored locally on your device so the app can remember your choice.

Offline contact preview

The in-app Contact screen is a non-functional offline preview. Text entered there is not sent, submitted or stored.

Deletion and retention

GravelGauge operates no user-data server and holds no personal data remotely. As a result, there is no server-held data to access, export or delete. You can remove the local theme preference by clearing the app’s storage or uninstalling it.

Children’s privacy

The calculator does not ask anyone, including children, for personal information. It is not designed to solicit or collect information from children. A parent or guardian should supervise a child’s use of construction-planning information where appropriate.

Changes

If the app’s data practices change, this policy and its effective date will be updated before those changes are introduced.