Privacy Policy

Effective date: August 21, 2026

This Privacy Policy applies to the websites, apps, and games provided by XZ Island (星知岛). It explains what information we handle, how we use it, and the choices you have.

Who we are

XZ Island (星知岛) operates this website and our apps and games. For questions about this policy, email support@xz-island.com.

Information we handle

Our products are designed so that, where possible, information you create in an app or game stays on your device. Most of our products do not require an account.

Depending on how you use our website or products, we may handle the following:

We do not sell this information. We do not upload on-device product data to our servers unless a feature you choose to use requires it; if so, we will explain that in the product.

• On-device data you create in an app or game, such as settings, progress, or records you choose to save
• Information you send us when you contact support (your email address and message)
• Limited technical information needed to operate the website (such as standard server logs)

How we use information

We use information to provide, maintain, and improve our website, apps, and games, and to respond to your requests.

Sharing

We do not sell your personal information. We do not share on-device product data with third parties for advertising. We may disclose information if required by law, or if you ask us to.

Third-party services

Our apps and games may be distributed through Apple's App Store and similar platforms. Those platforms may collect information under their own privacy policies. This website is hosted by us. Our products do not use third-party advertising networks.

Retention

On-device data remains on your device until you delete it in the product or uninstall the app. Support emails are kept only as long as needed to handle your request. Website logs are kept only as long as needed to operate and secure the site.

Your choices

You can stop using our products at any time. For help with information that relates to you, email support@xz-island.com.

• Delete locally stored information in the app or game
• Uninstall the product to remove its data from your device

Children

Our website, apps, and games are not directed to children under 13. We do not knowingly collect personal information from children.

Changes

We may update this policy. We will change the effective date at the top of this page. If changes are material, we will provide a more prominent notice in the product or on this page.