App Name: Calcudoku

Developer: Mucore App and Game Studio

Last updated: March 23, 2026

This Privacy Policy describes how Mucore App and Game Studio ("we," "us," or "our") collects, uses, and shares information about you when you use our mobile application Calcudoku.

1. INFORMATION WE COLLECT

We do not require you to create a personal account to solve Calcudoku puzzles. However, we may collect certain information automatically through third-party services integrated into our App to provide functionality, ads, and analytics.

A. Information Collected Automatically

When you use the App, the following information may be collected by our third-party partners (such as Google AdMob or RevenueCat):

• Device Information: Device model, operating system version, manufacturer, and mobile network information.
• Identifiers: Unique device identifiers, such as the Google Advertising ID (GAID) or IDFV.
• Usage Data: Information about how you use the App, such as Calcudoku level progress, puzzle scores, cage completion stats, session duration, and interaction with features.
• Approximate Location: Data derived from your IP address to display relevant content or ads.
• Crash & Performance Data: Crash logs (e.g., via Firebase Crashlytics) to help us fix bugs in the puzzle engine.

B. Financial Information

If you purchase a "Premium" or "Ad-Free" version of Calcudoku, the transaction is processed directly by the app store (Google Play Store or Apple App Store).

• We DO NOT collect your credit card numbers or billing address.
• We DO receive an anonymous receipt validation token to verify your purchase.

2. THIRD-PARTY SERVICES

We use the following trusted partners to support our math puzzles:

• Google AdMob: Displays advertisements that keep the basic version of Calcudoku free.
• RevenueCat: Manages your "Premium" puzzle unlocks and subscription infrastructure.
• Firebase (Google): Provides analytics and crash reporting to improve Calcudoku's stability.

3. HOW WE USE YOUR INFORMATION

We use the collected information for:

• Service Delivery: To provide the game functionality and save your progress locally.
• Purchase Verification: To validate your "Premium" status via RevenueCat.
• Advertising: To display ads via AdMob.
• Improvement: To fix logic errors in puzzles and analyze user retention.

4. YOUR DATA RIGHTS & DELETION REQUESTS

Depending on your location (e.g., GDPR or CCPA), you have rights regarding your data. Since we do not use accounts, your data is usually tied to your Advertising ID.

• Reset/Delete Ad ID: Go to your device Settings > Google > Ads (Android) or Privacy > Tracking (iOS).
• Request Deletion: Contact us at support@mucoreapp.com to request deletion of data related to support tickets or purchase tokens.

5. CHILDREN’S PRIVACY

Our App is intended for a general audience. We do not knowingly collect personal information from children under 13 (or 16 in the EU). If you believe we have inadvertently collected such data, please contact us immediately.

6. DATA SECURITY

We take reasonable measures to protect your information, though no digital security is 100% impenetrable.

7. CHANGES TO THIS POLICY

We may update this policy to reflect changes in our Calcudoku features. We will notify you by updating the "Last updated" date at the top.

8. CONTACT US

If you have any questions about this Privacy Policy, please reach out:

Email: support@mucoreapp.com