Zen Dunes

Privacy Policy — Zen Dunes

Last updated: July 13, 2026

Zen Dunes (the “App”, the “Game”) is a calm falling-sand puzzle game developed by Birkin Apps (“we”, “us”). This Privacy Policy explains what data the App collects, why, and your choices. Zen Dunes does not require an account — play is anonymous.

Summary

Data we collect and why

1. Device identifier / advertising ID

On iOS, your IDFA is used only if you grant permission via Apple’s App Tracking Transparency (ATT). On Android, your Advertising ID (GAID) is used. Purpose: to serve and measure ads through Google AdMob. This is considered tracking.

2. Purchase history

Processed through in-app purchase (Apple StoreKit / Google Play Billing) for optional in-app products and to restore purchases. We do not process or store your payment-card data — Apple and Google handle payments. Your purchase status (owned / not owned) is stored on your device.

3. On-device settings & progress

Your level progress, stars, and preferences (language, sound, etc.) are stored locally on your device using shared_preferences. This data is never transmitted to us — there is no cloud database and no analytics SDK in the App.

Data we do NOT collect

We do not collect your name, email address, phone number, precise location, contacts, photos, or health data. There is no social login, no user account, no analytics SDK, no crash-reporting SDK, and no cloud sync.

Third parties (sub-processors)

Advertising/measurement domains used: googleadservices.com, doubleclick.net, googlesyndication.com.

Your choices & rights

Data deletion

All game data is stored locally, so uninstalling the App deletes it. Purchase records are kept by Apple/Google under your store account. For anything else, email support@birkinapps.com.

Children

Zen Dunes is intended for a general audience and is not directed to children under 13. If a user is under 13 (or the applicable age in your region), advertising will not be personalized, in line with COPPA and GDPR-K.

Store privacy disclosures

Consistent with Apple’s App Privacy and Google Play’s Data Safety, we declare: Device ID (advertising; used for tracking), Purchase History (app functionality; handled by the stores).

Changes

We may update this Policy; the “Last updated” date reflects the latest version.

Contact

Birkin Apps — support@birkinapps.com