The short version
- Deck Defense has no accounts and no login. We do not run our own servers and do not collect your name, email, or contacts.
- Your game progress is stored only on your device.
- We show ads through Google AdMob and process purchases through the Apple App Store / Google Play. These services may collect device and advertising identifiers, as described below.
- On iOS we ask your permission before any tracking. If you decline, you still get ads — just non-personalized ones.
- We never sell your personal information.
Who we are
This policy applies to the mobile game Deck Defense (the “Game”), published for iOS and Android. In this policy, “we” and “us” refer to the developer of the Game. If you have any questions, contact us at zhenwushangtian1@gmail.com.
What the Game itself collects
The Game does not require an account and does not have its own backend server. It does not ask for, collect, or transmit personal information such as your name, email address, phone number, contacts, photos, or precise location.
Your game data — progress, unlocked content, in-game currency balances, and settings — is saved locally on your device using the operating system’s standard on-device storage. It is not uploaded to us. If you uninstall the Game, this local data is removed with it.
Information collected by third-party services
To show ads and process purchases, the Game uses services operated by Google and Apple. These providers may collect and process information under their own privacy policies. The table below summarizes what is involved and why.
| Service | Data involved | Purpose |
|---|---|---|
| Google AdMob | Advertising identifier (e.g. IDFA on iOS, Advertising ID on Android), device information, IP address, and ad-interaction data | Serving ads, limiting how often an ad is shown, measuring ad performance, and (with your consent) personalizing ads |
| Apple App Store / Google Play in-app purchases | Purchase transaction and receipt data, handled by the store | Processing your purchase and unlocking the item. We receive confirmation of the purchase but not your payment card details |
For details on how these providers handle data, see:
Advertising and tracking choices
On iOS — App Tracking Transparency
The first time it is relevant, the Game asks whether you allow tracking, using Apple’s standard App Tracking Transparency prompt. If you decline, we do not use your advertising identifier for cross-app tracking, and you will see non-personalized ads instead. You can change this choice at any time in Settings → Privacy & Security → Tracking.
On Android
You can reset or delete your Advertising ID, or opt out of ad personalization, in Settings → Google → Ads.
Children
The Game is not directed to children under the age of 13 (or the equivalent minimum age in your country), and we do not knowingly collect personal information from them. If you believe a child has provided personal information, please contact us and we will address it.
Your rights and choices
Because the Game stores data only on your device and we hold no account information about you, the most direct way to remove Game data is to uninstall the Game. For data processed by Google and Apple, you can exercise your rights through their respective privacy controls linked above. Depending on where you live, you may have rights to access, correct, or delete personal information held by those providers.
Changes to this policy
We may update this policy from time to time. When we do, we will revise the “Last updated” date at the top of this page. Continued use of the Game after a change means you accept the updated policy.
Contact
If you have any questions about this Privacy Policy, email us at zhenwushangtian1@gmail.com.