Privacy Policy
IQRBlock: 6-in-1 Block Puzzle
Effective date: 2026-03-19
IQRBlock ("we", "our", or "the app") respects your privacy. This policy explains what data is used, when it is used, and why.
1) Who this app is for
IQRBlock is designed for children and families, including users under 13.
2) Account and personal information
- No sign-up screen is required for gameplay.
- We do not ask for your name, phone number, or home address.
- For app security and cloud features, Firebase Anonymous Authentication may create an anonymous app user ID.
3) Photos and local gallery use
- When you select images, they are used to build puzzle content.
- Images are stored in app/local storage for gameplay until you remove them.
- Images may be cropped/resized/compressed (for example, square crop) to fit puzzle and challenge formats.
- We use the system image picker for image selection.
4) Player Challenge (cloud sharing)
If you choose to use Player Challenge (share by code), the app uploads challenge content to cloud storage.
- Uploaded content may include: puzzle images and your optional comment text.
- A short challenge code is generated so other players can download that challenge.
- Challenge data is stored using Google Firebase services.
- Challenge data is time-limited (for example, code availability and automatic cleanup windows).
Please do not include private or sensitive personal information in challenge comments.
5) Ads and third-party services
IQRBlock uses Google AdMob (banner/interstitial/rewarded) and Firebase services (such as Storage, Authentication, App Check).
- These services may process limited device/app/network data to provide their functions.
- We configure child-directed ad settings where applicable.
Google Privacy Policy: https://policies.google.com/privacy
6) Children's privacy
- We aim to keep data collection minimal for children's use.
- Parents/guardians are encouraged to supervise photo sharing and challenge features.
7) Data sharing
- We do not sell personal data.
- Data is shared only with service providers needed to run app features (for example, Google AdMob/Firebase).
8) Retention and deletion
- You can delete local gallery content inside the app.
- Uninstalling the app removes local app data according to Android behavior.
- Cloud challenge data is designed to expire and be cleaned up automatically after a limited time.
9) Security
We use reasonable measures to protect data. However, no electronic storage or transmission method is 100% secure.
10) Changes to this policy
We may update this Privacy Policy from time to time. The latest version will always be posted at this URL.
11) Contact
If you have questions, contact us at: teoyingchieh@gmail.com