misty-egg Y.K. ("we," "us," or "our") establishes this policy for user information handled by the smartphone application "Cuprio."
The app handles the following information locally on the user's device:
The app does not transmit this information to our servers. If the user enables device, Apple, or Google backup services, however, the OS provider or another service provider may back it up under that provider's own policy.
Cuprio allows users to select photos or image files as calculator backgrounds.
The app uses only photos or images selected by the user and does not transmit them to our servers.
Because the app has no function that enables us to collect the information above, we do not disclose it to third parties.
The app contains no advertising SDK, third-party analytics SDK, or behavioral tracking tool integrated by us. Apple or Google may process information in connection with their stores, in-app purchases, and crash diagnostics under their respective privacy policies and the user's device settings. We do not receive payment card information.
Calculation history, settings, and background images are stored locally and can be deleted or changed within the app. Deleting the app may delete stored information. Because we cannot access on-device data, we cannot view, restore, or delete it for the user.
The app is not designed to collect personal information from children and does not include account registration with our servers.
We may revise this Policy to reflect changes in law or app features. Material changes will be announced on this page or in the app.
Last updated: Oct 12, 2026
Established: Aug 13, 2026
Operator: misty-egg Y.K.
Address: 937-148 Tokiwa, Kamakura-shi, Kanagawa 248-0022, Japan
Phone: +81-467-84-8444