Privacy policy

Effective November 5, 2026. Gobling Company provides GradePin Drainage Layout for Android as an offline paid utility.

Local information

The app does not collect or transmit personal data. It has no account, advertising, analytics, tracking SDK, AI service, app network permission or cloud sync. Run names, references, notes, entered elevations, imported plans and generated files stay in private device storage. Android device backup is disabled. The app does not request location, microphone or camera access or connect to survey instruments.

Files you choose

Android’s document picker grants access to files you select. A chosen storage provider may use cloud storage under its own policy. Saving and sharing are user initiated; destinations and receiving apps handle files under their own terms. Support and policy links open your browser. A support email is sent only if you choose to send it; its contents are used to respond.

Deletion

Delete run removes private run data and local exports. Clearing local exports preserves the editable run. Clearing app storage or uninstalling removes private work. External saved/shared copies remain until you delete them at their destination. A recovery ZIP is created only on request and contains raw local state and files; protect it as you would the original plans.

Contact

Contact maga40@naver.com. Material policy changes will appear here.