Last updated: November 2026
This Privacy Policy describes how Zombie Block Defence ("the App", "we", "us") collects, uses, and shares information when you use our mobile game on iOS and Android.
The App has no accounts or sign-in, and we do not ask for your name, email address or contacts. The App saves your game progress (levels cleared, settings such as sound and haptics, and similar preferences) locally on your device. If you use the world ranking, the App sends a display name, a score and a device identifier to our ranking database, as described in section 6. The third-party analytics and advertising services integrated into the App may also collect certain data as described below.
If you choose to send a suggestion from the Settings screen, the text you write is sent to our server, which is hosted by Cloudflare, and stored there together with the name of the game, your platform, the app version, the language the App is using, the country your connection came from, and a random identifier the App made up for this install. That identifier is not your advertising ID and is not linked to your name, email address or any account. We read the suggestions people send, and may use a translation tool to read ones written in a language we do not speak. To limit how many messages one device can send, a scrambled (hashed) copy of your IP address is kept for about two days; we do not store the IP address itself. We do not ask for your name or email address and cannot reply, so please do not put personal details in a suggestion. Suggestions are not used for advertising and are not shared with ad networks. We keep them until we delete them; to have one removed, contact us using the details at the end of this policy, quoting its text, and we will delete it.
We use Firebase Analytics to understand how people play the App, so we can fix problems and improve the levels. We record events such as levels started and finished (and whether the wave was won), free blocks earned, daily gifts opened, and waves shared. These events contain game information only (for example a level number), never your name, email address or contacts. Firebase may also collect an app instance identifier, device and operating system information, approximate location derived from your IP address, and general usage data such as sessions and app opens. In regions where consent is required, analytics and advertising follow the choices you make in the consent form (Google's User Messaging Platform).
The App displays banner, interstitial and rewarded video advertisements served through the LevelPlay mediation platform, which includes the following ad networks:
These networks may collect device advertising identifiers (IDFA on iOS, Advertising ID on Android), IP address, approximate location, and other technical information about your device and how you interact with ads, in order to serve and measure advertisements and to prevent fraud. In regions where consent is required (for example the EEA, UK and Switzerland), the App shows a consent form (Google's User Messaging Platform) before personalised ads are served, and you can change your choice later where the form is offered.
The App is distributed through Apple (App Store) and Google (Google Play). These platforms may collect usage and device information in accordance with their own privacy policies. We do not receive or store payment information.
On iOS 14.5 and later, we ask for your permission before accessing your device's advertising identifier (IDFA) for personalised advertising. You may deny the request and the App will continue to work normally; ads will simply be less personalised.
The App stores your game progress and settings on your device using the operating system's standard preferences storage. This data never leaves your device and is removed when you uninstall the App.
If you choose to share a wave, the App creates a link containing a short code that describes the level and the layout of your defence. It contains no personal information. The link is shared only through the share options you pick on your device. When you open such a link, the App reads the code from it to replay the wave. On the first launch only, the App may check the device clipboard once for a wave link copied while installing the App from a friend's link; it does not store or transmit anything else from the clipboard.
The App has a world ranking. When you play, the App sends the following to our ranking database, which is hosted by Google (Firebase Cloud Firestore):
The App shows other players only display names and scores. The ranking database is not private, so please treat your display name as public. If you would like your entry removed, contact us with your display name and we will delete it.
On iPhone the App can record a short clip of the game screen when you ask it to, so you can share a replay. The clip contains only the game, is saved on your device, and is shared only if you choose to share it.
The App is intended for general audiences and is not directed to children under 13. We do not knowingly collect personal information from children under the age of 13. If you believe a child has provided personal information, please contact us and we will take steps to delete it.
Apart from the ranking entries described in section 6, which we keep until you ask us to remove them or the board is retired, we do not directly store personal data. Analytics data is retained in Google Analytics for the standard retention period set for our property (up to 14 months), and data collected by other third-party services is retained according to their own retention policies, linked above.
Depending on your location you may have rights regarding your personal data, including access, correction, and deletion. Please contact the relevant third-party service directly, or contact us using the details below and we will assist where possible.
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date. Continued use of the App after changes constitutes acceptance of the revised policy.
If you have any questions about this Privacy Policy, please contact us at:
Lance Abson
lance@iphonegamesapps.com
© 2026 Zombie Block Defence. All rights reserved.