Privacy Policy
This Privacy Policy describes how Son Loc Cao, an independent game developer in Vietnam publishing as Sherlock Cao ("we", "us"), collects, uses, and shares information when you use the Cube Blast: 3D Puzzle mobile app ("the App").
Information we collect
Cube Blast: 3D Puzzle does not directly collect any personally identifiable information (PII) such as your name, email, or location. The App has no accounts, no sign-in and no in-app purchases.
The App stores the following data locally on your device only:
- Your best score in each game mode (Classic and Time Attack)
- Your unfinished game (the board, the pieces waiting to be placed, the score, the time left in Time Attack, and whether you have already used your continue), so you can pick it up later
- Sound effects, music, voice and vibration settings, and your frame rate (FPS) choice
- The current color theme
We do not run any server and do not receive this data. The App has no online leaderboard and does not send your scores to any ranking or game server. The game mode you pick and the final score of each game are included in the usage events sent to Firebase Analytics (see "Third-party services"); these events do not include your name or any account.
Third-party services
The App integrates Google AdMob to serve advertisements (a banner at the bottom of the screen, full-screen interstitial ads that may appear when you restart a game or return to the menu, and optional rewarded ads that you choose to watch to continue a game after it ends), and Google Firebase Analytics to understand aggregate usage. These services may collect:
- Device identifiers (such as the Android Advertising ID; on iOS, the Identifier for Advertisers (IDFA) only if you allow tracking, and resettable app-scoped identifiers)
- IP address, which Google uses to estimate your approximate location (country or region level)
- App usage events (such as games started and the mode chosen, final scores, or which ad formats were shown)
- Device information (model, OS version)
- Diagnostic information (such as app and ad performance)
This data is used to serve and measure ads, to prevent fraud, and to understand how the App is used. Google may share data with its advertising partners as described in its policies. Google's privacy practices are described at policies.google.com/privacy, and how Google uses data from apps that use its services is described at How Google uses information from sites or apps that use our services.
On iOS, the first time you open the App, it asks for your permission to track your activity across other companies' apps and websites (Apple's App Tracking Transparency prompt). If you allow it, Google can use your device's Identifier for Advertisers (IDFA) to personalize and measure ads. If you do not allow it, the IDFA is not available to the App or to Google (iOS returns only zeros), and ads are served without cross-app tracking. You can change your choice at any time under Settings → Privacy & Security → Tracking.
On Android, you can reset or delete your advertising ID under Settings → Privacy → Ads (on some devices Settings → Google → Ads). Menu names vary by device and Android version.
Data retention and deletion
Data the App stores on your device stays there until you clear the App's data or uninstall the App, which deletes it. If you have turned on your device's own backup (such as Android backup or iCloud backup), that backup may include this data and restore it when you reinstall the App; we have no access to these backups. We keep no copy on any server. Google keeps the data it collects through AdMob and Firebase Analytics under its own retention rules; Firebase Analytics event data for the App is kept for no longer than 14 months. We cannot identify you from this data, so we cannot look it up by your name or email. To limit how new data is linked to your device, reset or delete your advertising ID (Android) or turn off tracking for the App (iOS); to stop all collection, uninstall the App. For any privacy request, email support@sherlockcao.com and we will reply within 30 days.
Security
The App sends no data to our own servers. Data collected by Google's SDKs is sent to Google over encrypted connections (TLS).
Children's privacy
The App is intended for users aged 13 and older and is not directed to children. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has used the App, contact us and we will help you remove the App's data.
Contact
If you have questions about this privacy policy, contact: support@sherlockcao.com
Changes to this policy
We may update this policy from time to time. The "Last updated" date at the top will be revised accordingly. Continued use of the App after changes constitutes acceptance.