Privacy Policy

Last updated: April 08, 2026

ChemCalc Pro ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how your personal information is collected, used, and disclosed by ChemCalc Pro.

1. Information We Collect

ChemCalc Pro collects minimal information to provide and improve our services:

• Account & Profile Data (Optional): If you choose to sign in (via Apple or Google) to sync your game progress, purchases, or leaderboard stats across devices, we collect your unique user ID, display name, and email address (or Apple private relay email).
• Game & Sync Data: When logged in, your game progress (such as ChemMatch levels, stars, scores, and inventory) is securely synchronized to our cloud database.
• Usage Data: We may collect anonymous information about how you interact with the app to monitor app stability and fix bugs faster.
• Advertisement Data: We use Google AdMob for free users, which may collect standard mobile device identifiers for personalized advertising.

2. Use of Data

We use the collected data for various purposes:

• To provide and maintain our Service.
• To synchronize and restore your game progress and profile data across devices.
• To record, persist, and restore your Pro subscription and in-app purchases.
• To provide customer support and gather feedback.
• To monitor the usage of our Service and detect technical issues.

3. Third-Party Services

We use third-party tools that have their own privacy policies. These services help us provide authentication, cloud storage, analytics, and maintain stability:

• Apple Sign-In & Google Sign-In: For secure, optional social authentication.
• Supabase: For secure backend database and cloud data synchronization.
• Google AdMob: For serving advertisements.
• Google Firebase: We use Firebase Analytics to understand user engagement and Firebase Crashlytics to monitor app stability and fix bugs faster.
• Apple App Store / Google Play Store: For processing payments and subscriptions securely.

4. Data Security

The security of your data is important to us, but remember that no method of transmission over the Internet is 100% secure. While we strive to use commercially acceptable means to protect your Personal Data, we cannot guarantee its absolute security.

5. Your Choices & Data Deletion

You have full control over your data:

• Local Data: If you use the app as a guest (without logging in), your data is stored solely on your device. You can reset it anytime by clearing app data or reinstalling the app.
• Cloud Account & Data Deletion: If you signed in with Apple or Google, you can request full deletion of your account and all associated cloud data at any time directly within the app (Settings > Delete Account) or by contacting us at daip6690@gmail.com. Upon request, all your stored profile information and game progress will be permanently deleted from our servers.

6. Children's Privacy

Our Service does not address anyone under the age of 13. We do not knowingly collect personally identifiable information from anyone under the age of 13.

7. Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.

8. Contact Us

If you have any questions about this Privacy Policy or wish to request data deletion, you can contact us via the feedback section in the app or at daip6690@gmail.com.