Block Calculator - Privacy Policy
Last Updated: April 2026
1. Introduction
Block Calculator ("we", "our", or "us") operates as a free mobile application. This page informs you of our policies regarding the collection, use, and disclosure of personal data when you use our Service and the choices you have associated with that data.
2. Information Collection and Use
Block Calculator collects minimal data and is designed to protect your privacy.
2.1 Local Data
The app stores your calculation history and favorite calculations locally on your device only. This data is never transmitted to our servers or third parties.
2.2 Google Mobile Ads
We use Google Mobile Ads to display advertisements. Google may collect and use data as described in Google's Ad Policies.
2.3 Automatic Data Collection
Android may automatically collect diagnostic and crash data. This is controlled by your device settings, not by our app.
3. Data You Control
Your calculation history and favorites are stored locally on your device. You can:
- Clear your history at any time through the app settings
- Delete individual calculations from history
- Remove saved favorites
- Uninstall the app to completely remove all local data
4. Data Security
The security of your data is important to us, but remember that no method of transmission over the Internet or method of electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your personal data, we cannot guarantee its absolute security.
5. Children's Privacy
Our Service does not address anyone under the age of 13 ("Children"). We do not knowingly collect personally identifiable information from children under 13. If you are a parent or guardian and you are aware that your child has provided us with personal data, please contact us.
6. 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 and updating the "Last Updated" date at the top of this policy.
7. Contact Us
If you have any questions about this Privacy Policy, please contact us through the app's support section or visit our website.
8. Third-Party Services
Our app uses third-party services:
- Google Mobile Ads - For displaying advertisements
- React Navigation - Open source navigation framework
- AsyncStorage - Local device storage
We encourage you to review the privacy policies of these services for information about their practices.
Block Calculator is based on calculators from Inch Calculator (www.inchcalculator.com).