Welcome to Brownian. This privacy policy explains how we collect, use, and protect your data when you use our mobile physics puzzle game. We are committed to protecting your privacy and complying with the General Data Protection Regulation (GDPR), Apple's App Store requirements, and other applicable data protection laws.
2. Data Controller
The data controller responsible for your data is the Brownian game developer. You can contact us at: brownian@gmx.ch
3. What Data We Actually Collect
Summary: Brownian collects ONLY local game data and shows ads through Google AdMob/AdSense. We do NOT collect analytics, browsing history, or personal information. When you deny tracking permission, NO tracking occurs.
3.1 Essential Data (Always Collected - Stored Locally)
Game Progress: Level completion, star ratings, current level
Game Settings: Sound volume, music preferences
Privacy Choices: Your consent decisions for ads
Where it's stored: ONLY on your device using Local Storage (web) or iOS/Android app storage. This data NEVER leaves your device and is NOT transmitted to any servers.
3.2 Advertising Data (Only if You Allow Tracking)
iOS Users: When you tap "Allow" on Apple's "Ask App to Track" permission:
Google AdMob MAY collect device advertising ID (IDFA) for personalized ads
Google may use this to show you more relevant ads across apps
iOS Users: When you tap "Ask App Not to Track":
NO tracking occurs - we respect your choice completely
You will see non-personalized ads based only on game content
NO cookies, NO device ID collection, NO cross-app tracking
Apple App Store Compliance: If you deny tracking permission on iOS, Brownian does NOT collect any tracking data. We show only contextual, non-personalized ads that do not track you across apps or websites.
3.3 We Do NOT Collect
❌ Analytics or usage statistics
❌ Browsing history
❌ Location data (not even approximate)
❌ Personal information (name, email, phone)
❌ Any data when tracking is denied
4. Google AdMob Advertising
4.1 What AdMob Does
We use Google AdMob to show ads that support free access to the game. AdMob works differently based on your tracking choice:
If you ALLOW tracking (iOS "Allow" or GDPR consent):
AdMob may collect your device advertising ID
Shows personalized ads based on your interests
Higher revenue helps us keep the game free
If you DENY tracking (iOS "Ask App Not to Track" or GDPR rejection):
AdMob shows NON-personalized ads only
Ads are based on game content, not your personal data
Legitimate Interest: Essential game data needed for the game to function
Consent: Personalized advertising (only if you grant permission)
Contractual Necessity: Storing your game progress to provide the service
6. Data Retention
Game Data: Stored locally until you uninstall the app or clear browser data
Ad Data: Managed by Google AdMob according to their policies (typically 13-26 months)
7. Your Rights Under GDPR
Right to Access: Contact us to request what data we hold (it's only local game progress)
Right to Erasure: Uninstall the app or clear browser data to delete everything
Right to Withdraw Consent: Change ad settings anytime in the game Settings menu
Right to Object: Deny tracking permission to stop all ad personalization
8. Children's Privacy
Brownian is suitable for all ages. We do NOT knowingly collect personal data from children under 13. Parents can contact us if they have concerns.
9. International Data Transfers
If you consent to ads, data may be transferred to Google's servers in the United States. Google uses Standard Contractual Clauses approved by the European Commission to protect your data.
10. Data Security
Local game data is encrypted by your device's operating system
Web version uses HTTPS encryption
We do NOT operate servers that store your data
11. Changes to This Policy
We may update this privacy policy from time to time. Significant changes will be announced in the app. The "Last updated" date at the top shows the latest revision.
12. Managing Your Privacy Choices
In Brownian (iOS/Android Apps)
Open the game Settings menu
If you allowed tracking: Tap "Manage Privacy Preferences" to adjust ad personalization
If you denied tracking: Privacy management is handled through your iOS/Android system settings (the in-app button will show "Privacy Settings Unavailable" to respect your tracking denial)
In Brownian (Web Version)
Open the game Settings menu
Choose between: Accept All (personalized ads), Essential Only (non-personalized ads), or Reject All (no ads)
If you are in the European Economic Area (EEA) and have concerns about how we handle your data, you have the right to lodge a complaint with your local data protection supervisory authority.