Games — Privacy Policy

Which apps this covers

This policy applies to the Merano Studio games Bricks of Zai and Zen Stones (each, the "App"). Our other apps do not show advertising and are covered by a separate policy; Flooring It has its own.

Information we do not collect

We want to be clear about our data practices. We never ask for, receive or store your name, email address, postal address, phone number, payment details, location, contacts or photos. There is no account, no sign-up and nothing to log in to, and we do not sell or share anything about you with anyone.

Two things are worth naming rather than hiding behind that. These games show ads through Google AdMob, which does receive data about your device — that is described below. And a purchase sends us a record of the transaction together with a random identifier, which is also described below. Neither one tells us who you are, but both are more than nothing, so we would rather set them out plainly.

The identifier these games use

Both games generate a random identifier the first time they run and keep it in your device's keychain. If you use iCloud Keychain, it is shared with your other devices signed into the same Apple Account — which is what lets a purchase made on one device be recognised on another.

• It is a random value. It is not derived from your device's serial number, your phone number, your Apple Account, or any advertising identifier, and it is not tied to any personal information.
• Bricks of Zai displays it to you in the shop, so you can quote it to us if you ever need support with a purchase.
• It is sent to us with purchase records, as described under What leaves your device below, and nowhere else. We hold no name, email address or payment information beside it, so it does not tell us who you are.

Third-party services

These games use Google AdMob to display advertisements. Please note:

• AdMob may collect and process certain data as described in the Google Privacy Policy.
• This may include device information, IP address, and advertising identifiers to serve personalised ads.
• You can opt out of personalised advertising by adjusting your device settings.
• We do not provide any of your information to AdMob, as we do not collect any.

We use no analytics or crash-reporting service in these games. We do not collect usage statistics, session data or crash reports from them.

What leaves your device

Your scores, your progress and your settings never leave your device. They are written to that game's own private storage and stay there; we have no server that holds them and no way to retrieve them. Deleting the game deletes them.

Besides AdMob's own requests, described above, there is exactly one thing these games send us. When — and only when — you make a purchase or tap Restore Purchases, the game sends a record of that transaction to our server, so we can confirm the purchase is genuine and keep what you bought unlocked. That record contains:

• Apple's own cryptographically signed record of the transaction, which identifies the product you bought and when. We do not add your name, email address or payment details, and we never see them.
• The random identifier described above, so we can recognise repeat transactions from the same person. It cannot be used to identify you.

The request is signed using Apple's App Attest, which proves it came from a real, unmodified copy of the game rather than from someone impersonating it. That creates a key inside your device's Secure Enclave and stores its identifier in your device keychain. The key is specific to this installation, contains no personal information, and cannot be used to track you anywhere else.

Nothing else is sent. We receive no information about how you play, when you play, or how far you get.

In-app purchases

Both games offer a one-time, permanent purchase that removes advertisements. Bricks of Zai additionally offers packs of in-game currency. These transactions are processed by Apple through the App Store. We do not receive, collect, or store your payment information. Any purchase information is subject to Apple's Privacy Policy.

Children's privacy

While these games are not specifically directed to children under 13 years of age, we recognise that children may play them. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe we might have inadvertently collected information from your child, please contact us immediately at the email address at the end of this policy.

Your choices

Since we do not collect personal information, there is no personal data for us to access, correct, or delete. You do, however, have these options:

• You can buy the ad removal to avoid advertisements from AdMob entirely.
• Within iOS, you can reset your Advertising Identifier or limit ad tracking under Settings → Privacy & Security → Tracking, or Settings → Privacy & Security → Apple Advertising.
• You can delete the App at any time, which removes all App-related data from your device.

Changes to this policy

We may update this policy from time to time. We will post the new version on this page and update the "Last Updated" date at the top. You are advised to review it periodically.

Contact

If you have any questions or concerns about this policy or our privacy practices, please contact us at: