Privacy Policy for Stack - BuildUp
Welcome to Stack - BuildUp ("the Game", "we", "us", or "our"), developed and published by IYGroup. We are committed to protecting and respecting your privacy. This Privacy Policy outlines our practices regarding the collection, use, and disclosure of information when you download, install, and play Stack - BuildUp on iOS, Android, or related platforms.
By downloading or playing the Game, you agree to the collection and use of information in accordance with this Privacy Policy.
1. Information We Collect
A. Information Stored Locally on Your Device
Stack - BuildUp is designed to be played immediately without requiring mandatory user registration, login credentials, or personal accounts. The following data is stored locally on your device via secure local storage (SharedPreferences / UserDefaults):
- Game Progression & Telemetry: High scores, total blocks stacked, combo multipliers, and perfect alignment counts.
- In-Game Currency & Unlocks: Stars, diamonds balance, and unlocked visual theme identifiers.
- User Preferences: Sound effects toggle (ON/OFF) and haptic feedback toggle (ON/OFF).
B. Information Collected Automatically by Third-Party Services
To support ongoing maintenance, stability, advertising monetization, and gameplay quality, we integrate trusted industry-standard SDKs that may collect non-personally identifiable diagnostic, analytics, and advertising telemetry:
- Device Information: Hardware model, operating system version, unique device identifiers (e.g., Android ID, Advertising ID / IDFA), device language, carrier, and screen resolution.
- Gameplay Analytics & Usage Data: Game start/game over counts, score milestones, theme selections, session duration, and screen transitions.
- Diagnostic & Performance Data (Crashlytics): App crash stack traces, ANR (Application Not Responding) events, memory state at time of error, and overall technical stability metrics.
- Advertising Data: Ad impressions, click data, video ad watch completion (for Rewarded Ads), and coarse geographic location (country/region level derived from IP address).
2. Third-Party Services & SDK Integrations
The Game utilizes third-party SDKs that process data in accordance with their respective privacy policies:
Google Analytics for Firebase
AnalyticsAnalyzing gameplay telemetry, user engagement, retention, screen views, and score milestones to optimize game performance and user experience. Collects pseudonymous app instance identifiers, gameplay event telemetry (e.g., game_start, game_over, milestone_reached, theme_selected), device model, OS version, and coarse geographic data.
Firebase Crashlytics (Google LLC)
Crash DiagnosticsReal-time crash diagnostics, fatal and non-fatal error logging, and stability monitoring to resolve technical issues promptly. Collects crash stack traces, device state (OS version, device model, free memory/storage), app version, and contextual diagnostic keys (e.g., active theme, run duration).
Google AdMob (Google LLC)
AdvertisingDelivering banner ads, interstitial transition ads, rewarded video ads, and app open advertisements to keep the Game free to play. Collects device identifiers, advertising IDs (IDFA/GAID), ad engagement metrics, and coarse geographic data.
Google Play Services / Apple App Store / In-App Review
Platform ServicesPlatform distribution, app updates, and native in-app store review prompts on Android and iOS.
3. How We Use the Information
We and our third-party partners use the collected information for the following purposes:
- To Deliver & Maintain the Game: Enabling responsive 60 FPS gameplay, saving your high score milestones, and unlocking cosmetic themes.
- To Improve Game Experience: Understanding popular features, themes, and game difficulty balance via aggregated Firebase Analytics telemetry.
- To Monitor App Health & Fix Bugs: Identifying crashes and diagnosing device-specific performance bottlenecks via Firebase Crashlytics.
- To Provide Monetization: Displaying advertisements (banner, interstitial, and rewarded ads) that allow the Game to remain free to play.
- To Comply with Legal Obligations: Enforcing our terms and preventing fraudulent or unauthorized activity.
4. Advertising & User Choice (Opt-Out)
Depending on your device settings and local jurisdiction, you have the right to control how advertising identifiers are used:
5. Children's Privacy (COPPA & Global Standards)
Stack - BuildUp is designed for general audiences of all ages and does not knowingly collect or solicit personal information from children under the age of 13 (or under 16 in the European Economic Area).
If we learn that we have inadvertently gathered personal data from a child under the applicable age without verified parental consent, we will promptly take steps to delete such information. If you believe a child has provided us with personal information, please contact us at the support address below.
6. Your Rights Under GDPR & CCPA/CPRA
If you are a resident of the European Economic Area (EEA), the United Kingdom, or California, you have the following data protection rights:
- Right to Access: You have the right to request information regarding the data processed about you.
- Right to Rectification / Deletion: You can reset your locally stored game data at any time by clearing the application data/cache in your device settings or by uninstalling the Game.
- Right to Restrict or Object to Processing: You can manage ad personalization consent and analytics tracking through your device's system privacy settings.
- Non-Discrimination: We will not discriminate against you for exercising any of your privacy rights.
7. Data Retention & Security
- Local Data: Game progress, unlocked themes, and preferences reside strictly on your device until you uninstall the app or clear device storage.
- Third-Party Telemetry: Firebase and AdMob retain diagnostic, crash, and ad interaction data according to their published retention schedules and industry standards.
- Security: While no mobile transmission or storage method is 100% impenetrable, we and our partners employ commercial-grade physical, electronic, and administrative safeguards to protect your data.
8. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or new game features. Any changes will be effective immediately upon posting the updated policy with a revised "Last Updated" date. We encourage you to review this policy periodically.
9. Contact Us
If you have any questions, feedback, or concerns regarding this Privacy Policy or our privacy practices, please contact us: