Privacy Policy

1. Who we are and scope

The data controller for the Dustwall: Zombie Tower Defense app and this page is Przemysław Bocer, an independent developer based in Poland, publishing as Byte Chimera ("we"). Contact us about privacy at support@bytechimera.com.

2. Optional gameplay analytics

To see where players get stuck and tune difficulty, the app sends pseudonymous gameplay events to TelemetryDeck, a privacy-focused analytics service based in Germany. From version 1.0, this is off by default and starts only when you enable Settings → Share statistics. Earlier 0.1 TestFlight builds send these events automatically. The events include:

• Game events: for example mission started, mission won or lost and at which wave, upgrade bought, store opened, purchase completed.
• Technical context: app version, iOS version, device model and language.
• A random identifier created on your device when statistics are enabled (on first launch in older 0.1 TestFlight builds). It is hashed before it leaves the device. This stable pseudonymous identifier groups events from the same installation. It is not your Apple Account, name, email or advertising identifier.

We do not link these events to your identity, do not combine them with data from other apps or websites, and never use them for advertising. In the App Store privacy label this appears as Identifiers (Device ID), Usage Data (Product Interaction) and Purchases (Purchase History), all not linked to you and used for Analytics only. We keep analytics data only as long as it is useful for improving the game, and no longer than TelemetryDeck's retention period.

3. iCloud saves

iCloud Save is on by default when you are signed in to iCloud. Your progress (missions, stars, upgrades, loadout, parts balance and its purchase history) is stored in your own private iCloud database through Apple's CloudKit. Only your iCloud account can read it; we cannot access it. You can turn iCloud Save off at any time in the game's Settings; with it off, progress stays on the device only. Sync also stops if you turn off iCloud for Dustwall in iOS Settings.

4. In-app purchases

Parts packs and the Scavenger licence are sold through the App Store and processed entirely by Apple. We never see your payment details. The game stores the transaction identifier and the number of parts delivered so the same purchase is never counted twice. Refunds are handled by Apple through Report a Problem.

5. What we do not do

• No ads and no advertising SDKs.
• No tracking across apps or websites, no data brokers, no advertising identifier.
• No access to location, contacts, photos, camera or microphone.
• No sale of data. Analytics events go only to the provider named above.

6. Children

Dustwall does not ask players for names, contact details or accounts. Optional statistics use the pseudonymous identifier described above and are disabled by default, including for younger players.

7. Your choices and rights

From version 1.0, you can turn off Settings → Share statistics at any time. This stops future analytics, discards queued events and removes the local analytics identifier; it does not erase events already received by TelemetryDeck. Gameplay and purchases remain available with statistics off. Deleting the app removes all game data from the device. iCloud copies can be removed in iOS Settings → your name → iCloud → Manage Account Storage. We do not associate the analytics identifier with your name or email, so locating your events may require additional information. You can write to us with privacy requests, including access or deletion requests under the GDPR, at support@bytechimera.com. You may also contact your local data protection authority.

8. Changes

If this policy changes, the new version will be published on this page with a new date.