Block Blast - Privacy Policy

1. Introduction

Block Blast ("we", "us", "our", "the app") is a mobile puzzle game. We respect your privacy and are committed to protecting your personal data. This privacy policy explains what data we collect, how we use it, and your rights regarding that data.

Block Blast does not contain ads or in-app purchases.

By using Block Blast, you agree to the practices described in this policy.

2. Information We Collect

2a. Information You Provide

Display Name — A nickname you choose for the global leaderboard (max 20 characters). This is not your real name unless you choose to use it.
Avatar Selection — Your chosen preset avatar icon or a photo you upload from your device gallery. Custom photos are stored locally on your device only and are not uploaded to any server.

2b. Information Collected Automatically

Anonymous User ID — When you first open the app, Firebase Authentication creates an anonymous identifier (no email, no password, no personal details). This ID is used solely to identify your leaderboard entry.
Game Data — Your high score, level, and avatar index are stored on our servers (Google Cloud Firestore) for the global leaderboard feature.
Analytics Events — With your consent, anonymous gameplay events (e.g., "game started", "game over with score X") are collected via Firebase Analytics. These events contain no personally identifiable information (PII). Analytics collection is disabled by default and only enabled after you consent.
Crash Reports — With your consent, Firebase Crashlytics collects technical diagnostic information (device model, OS version, stack trace) to help us fix bugs. No PII is included in crash reports. Crash reporting is disabled by default and only enabled after you consent.

2c. Information Stored Locally Only

The following data is stored on your device and never transmitted to any server:

Game settings (sound, music, haptics, theme preference)
Achievement progress
Score history and statistics
Custom avatar photos
Daily streak and daily challenge progress

3. How We Use Your Information

Leaderboard — Your display name, score, level, and avatar index are used to display the global leaderboard to all players.
App Improvement — With your consent, anonymous analytics help us understand how players interact with the game so we can improve gameplay.
Crash Fixing — With your consent, crash reports help us identify and fix bugs.

We do not: sell your data, create advertising profiles, show ads, send marketing emails, or share your data with data brokers.

4. How We Share Your Information

Service Provider	Data Shared	Purpose
Firebase Auth	Anonymous UID	User identification
Cloud Firestore	Display name, score, level, avatar index	Global leaderboard
Firebase Analytics	Anonymous gameplay events, device type	App improvement (consent required)
Firebase Crashlytics	Crash logs, device model, OS version	Bug fixing (consent required)

All third-party services are governed by their own privacy policies. See Firebase Privacy and Google Privacy Policy.

5. Data Retention & Deletion

Server data: Your leaderboard entry (display name, score, avatar index) is retained on our servers as long as you use the app. You can request deletion at any time (see below).

Local data: All local data can be deleted by uninstalling the app or clearing app data in your device settings.

To request deletion of server data:

Email us at blockblast.support@gmail.com with your request
We will delete your data within 30 days

Uninstalling the app removes all local data immediately. Analytics and crash data are automatically purged by Firebase according to Google's retention policies (typically 14 months for Analytics, 90 days for Crashlytics).

6. Children's Privacy

Block Blast is not directed at children under 13. We do not knowingly collect personal information from children under 13. The app does not require account creation or any personal data entry beyond an optional display name for the leaderboard.

If you believe a child under 13 has provided personal information, please contact us and we will delete it promptly.

7. Your Rights

All Users

Access — You can view your leaderboard data in the app.
Deletion — Request deletion by emailing us or uninstalling the app.
Consent — You can enable or disable analytics and crash reporting in the app settings.

EU/EEA/UK Residents (GDPR)

Under GDPR, our lawful basis for processing your data is:

Legitimate interest — Leaderboard functionality
Consent — Analytics and crash reporting (disabled by default, enabled only with your explicit consent)

You have the right to: access, rectify, erase, restrict processing, data portability, and object to processing. To exercise these rights, email blockblast.support@gmail.com.

California Residents (CCPA/CPRA)

We do not sell or share your personal information for cross-context behavioral advertising. You have the right to know what data we collect, request deletion, and opt out of any future sales. Contact us at blockblast.support@gmail.com.

8. Data Security

We use industry-standard security measures to protect your data:

All network communication uses HTTPS/TLS encryption
Firestore Security Rules restrict write access to authenticated users only
No passwords or payment data are stored by the app
No advertising SDKs are included in the app

9. International Data Transfers

Your leaderboard data is stored on Google Cloud servers in the United States. By using the leaderboard feature, you consent to the transfer of your display name and score data to the US. Google maintains appropriate safeguards for international data transfers.

10. Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated revision date. Continued use of the app after changes constitutes acceptance of the revised policy.

11. Contact Us

If you have questions about this privacy policy or want to exercise your data rights, please contact us at:

Data Controller: Block Blast Games, Ho Chi Minh City, Vietnam

Email: blockblast.support@gmail.com

Policy Version: 2.0