Privacy Policy for Concrete & Gravel Calc

Last updated: March 24, 2026

EckoByteStudios ("we", "our", or "us") operates the Concrete & Gravel Calc mobile application (the "App").

Information We Collect

Advertising Data

The free version of the App displays ads powered by Google AdMob. AdMob may collect:

• Device advertising identifier
• IP address
• General location (city-level)
• Device information (model, OS version)
• Ad interaction data

For more information, see Google's Privacy Policy.

Purchase Data

If you purchase the Pro upgrade, the transaction is processed through Google Play. We use RevenueCat to manage purchase validation. RevenueCat may collect:

• Anonymous app user ID
• Purchase history and subscription status
• Device information

For more information, see RevenueCat's Privacy Policy.

Locally Stored Data

The App stores your calculation history and settings locally on your device using AsyncStorage. This data:

• Never leaves your device
• Is not transmitted to any server
• Can be cleared by uninstalling the App

Information We Do NOT Collect

• Personal information (name, email, phone number)
• Location data (GPS)
• Contacts, photos, or files
• Usage analytics or crash reports

Third-Party Services

The App uses the following third-party services:

• Google AdMob — for displaying advertisements (free users only)
• RevenueCat — for in-app purchase management
• Google Play Billing — for processing payments

Children's Privacy

The App is not directed at children under 13. We do not knowingly collect personal information from children.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted within the App or on this page.

Contact Us

If you have questions about this Privacy Policy, contact us at:
e.mathewscs@gmail.com