Privacy Policy
Last Updated: February 2026
Introduction
Thank you for using our Stamp Collection App (hereinafter referred to as “the App"). This App is designed for parents and children to use together. We take the privacy of all users very seriously and are committed to protecting your and your family’s personal information. This Privacy Policy explains how we handle information related to the App.
Target Audience
This App is designed for family use, including parents and children. We are committed to complying with relevant privacy protection regulations, including but not limited to:
- U.S. Children’s Online Privacy Protection Act (COPPA)
- EU General Data Protection Regulation (GDPR)
- Other applicable privacy protection laws
Information We Collect
Personal Identification Information
The App does not collect, store, or share any personal identification information, including but not limited to:
- Names
- Email addresses
- Phone numbers
- Physical addresses
- Geolocation information
- Photos or images
- Any other personally identifiable information
Usage Analytics Information
The App uses Google Firebase Analytics to understand how users interact with the App to improve user experience. Firebase Analytics may collect the following anonymous and non-identifiable information:
- Device Information: Device model, operating system type and version
- Usage Behavior:
- Screen views within the App
- Feature usage (e.g., collecting stamps, viewing collections)
- Button clicks and interactions
- Technical Information:
- App usage duration and frequency
- App launch count
- App crash reports (to help us fix bugs)
Important Notes:
- All information collected through Firebase Analytics is anonymous
- This information cannot identify individual users or families
- We do not link this information with any personal identification information
- This information is used solely to improve App functionality, stability, and user experience
Data Storage and Management
Local Storage
- All stamp collection data and user preferences are stored locally on your device only
- Your data is completely under your control and does not leave your device
- Data is not synchronized between different devices (because there is no cloud storage)
No Backend Infrastructure
- We do not have any backend servers or cloud storage systems
- Your data is not uploaded to our servers
- Your data is not transmitted to any third parties (except for anonymous analytics via Firebase Analytics)
Data Deletion
- If you delete the App, all local data will be permanently deleted from your device
- You can also clear App data through device settings
Third-Party Services
Google Firebase Analytics
The App uses Google Firebase Analytics service for anonymous usage analysis.
Firebase Analytics Information:
- Firebase Privacy Policy: https://firebase.google.com/support/privacy
- Google Privacy Policy: https://policies.google.com/privacy
Your Choices:
- You can limit ad tracking through device settings
- iOS: Settings > Privacy > Tracking > Turn off “Allow Apps to Request to Track"
- Android: Settings > Google > Ads > Opt out of personalized advertising
No Other Third-Party Services
- The App does not contain third-party advertising
- The App does not contain social media integration
- The App does not contain any tracking or analytics cookies
Child Privacy Protection
As a family-friendly App, we place special emphasis on child privacy:
- ✓ Does not require any personal information
- ✓ Does not include social features or chat rooms
- ✓ Does not contain third-party advertisements
- ✓ Does not contain in-app purchases
- ✓ Does not contain external links (except this Privacy Policy)
- ✓ Will not collect any information from children without parental consent
- ✓ All data is stored locally on the device, completely under parental control
Parental Controls: As a parent, you have complete control over the App’s use on your device:
- You can review all content within the App at any time
- You can delete the App and all its data at any time
- You can manage App usage through your device’s parental control features
Information Security
Although the App does not collect personal identification information, we still take appropriate measures to:
- Ensure the App’s security and stability
- Regularly update to fix security vulnerabilities
- Use industry-standard security practices
Since all user data is stored locally on your device, data security also depends on your device’s security settings. We recommend:
- Setting a password or biometric lock for your device
- Regularly updating your device’s operating system
- Only downloading Apps from official app stores
App Permissions
The App may request the following device permissions:
- Storage: To store stamp collection data on the device
We only request the minimum permissions necessary for the App to function.
Your Rights and Choices
Data Access and Control
Since the App does not collect personal identification information and all data is stored on your device:
- You can access, modify, or delete all App data on your device at any time
- You can manage App permissions through device settings
- You can uninstall the App at any time
Opt-Out of Analytics
If you do not want Firebase Analytics to collect anonymous usage information:
- You can limit tracking through device settings
- Or simply uninstall the App
Data Retention
- Local Data: Retained on your device until you delete the App or clear data
- Analytics Data: Anonymous data collected by Firebase Analytics is processed by Google according to their data retention policy
International Users
The App is available for download and use by users worldwide. Since we do not collect personal identification information and have no backend servers, there are no cross-border data transfer issues. The only exception is anonymous data from Firebase Analytics, which is processed by Google.
Changes to Privacy Policy
We may update this Privacy Policy from time to time for reasons including:
- App feature updates
- Regulatory changes
- Improving information transparency
Change Notification Methods:
- Update the “Last Updated" date on this page
- Provide prominent notice within the App for significant changes
- We recommend reviewing this Privacy Policy regularly
Continued use of the App indicates your acceptance of the updated Privacy Policy.
Contact Us
If you have any questions, suggestions, or concerns about this Privacy Policy, please contact us through:
Contact Information:
- Email: sancarlosstudioapps@gmail.com
- Response Time: We will respond to your inquiry within 5-7 business days
Parental Rights: If you are a parent and have any concerns about child privacy, please feel free to contact us.