Privacy Policy for Bubble Scan

1. Information We Collect

Bubble Scan is designed with privacy in mind. We do not collect personal information. The app only accesses:

• Camera: Required to scan OMR answer sheets
• Device Storage: Required to save scan results and images locally on your device
• Device Information: Basic device info for app functionality (Android version, device model)

All data processing happens locally on your device.

2. How We Use Information

The limited information accessed by Bubble Scan is used solely for:

• Scanning and analyzing OMR answer sheets using your camera
• Saving scan results locally on your device
• Managing your scan count and app functionality
• Ensuring the app works properly on your device

3. Data Storage and Security

• Local Storage Only: All your scan data, results, and images are stored locally on your device
• No Cloud Upload: We do not upload your scans, results, or personal data to our servers
• Encrypted Storage: App data is encrypted using Android's security features
• No Third-Party Sharing: We do not share your data with third parties

4. Permissions Explained

Bubble Scan requests the following permissions:

• Camera Permission: Essential for scanning OMR sheets and documents
• Storage Permission: Required to save scan results, images, and app settings

You can revoke these permissions at any time through your device settings, though this may limit app functionality.

5. Data Retention

• Scan results and images remain on your device until you delete them
• App settings and scan count data persist until you uninstall the app
• You have full control over your data and can delete it at any time

6. Children's Privacy

Bubble Scan is safe for use by children and educational institutions. We do not knowingly collect personal information from children under 13. The app processes all data locally without transmitting personal information.

7. Institutional Use

For schools and educational institutions using Bubble Scan:

• No student data is transmitted to external servers
• All processing happens on the institution's devices
• Institutions maintain full control over their scan data
• We recommend institutions follow their own data protection policies

8. Third-Party Services

Bubble Scan uses the following third-party services:

• Google ML Kit: For document scanning (processes data locally on device)
• OpenCV: For image processing (operates locally)

These services process data locally on your device and do not transmit your personal information.

9. Changes to This Policy

We may update this privacy policy from time to time. We will notify users of any significant changes by:

• Updating the "Last updated" date at the top of this policy
• Displaying a notice in the app when appropriate

Your continued use of Bubble Scan after any changes indicates your acceptance of the updated policy.

10. Your Rights

Since all data is stored locally on your device, you have complete control:

• Access: View all your data within the app
• Delete: Remove scan results, images, or uninstall the app
• Control: Manage permissions through your device settings
• Portability: Export scan results as needed