Privacy Policy

Effective 29 October 2026

Cubeisme does not collect, store on any server, or share any personal data.

This policy covers the Cubeisme app for iPhone and iPad, developed by Ton Duc Hoang Vu (“we”).

No account, no ads, no tracking

The app has no sign-in, no advertising, no analytics and no third-party SDKs. It works fully offline: checking your puzzle and finding a solution happen on your device, and the app itself does not send anything over the internet.

Camera

The camera is used only while you scan a puzzle, to read the sticker colors. Camera frames are processed in memory on your device and are never saved or sent. You can deny camera access and enter the colors by hand instead.

Photos

For Photo Cube you choose images with the system photo picker, so the app sees only the photos you pick and needs no access to your photo library. A cropped copy is kept temporarily in the app’s cache on your device. It is not included in backups, and it is deleted when it is no longer used and when the app next starts. Photos are never uploaded.

Data on your device

Your learning progress, Settings choices and Your Patterns are stored only on your device. Cube colors and solutions are kept only for the current session. You can clear your learning progress in Settings, and deleting the app removes all of its data.

Feedback email

If you choose to send feedback, the app opens your Mail app with a draft that includes the app version, iOS version and device model. You can edit or delete anything before sending, and nothing is sent unless you tap Send. We use your email only to reply and to fix problems, and we delete it on request.

Children

The app collects no data from anyone, including children.

Changes

We will post any change to this policy on this page with a new effective date.

Contact

Questions about privacy: support@cubeisme.com