プライバシーポリシー

1. Introduction

The "Kids Lab Series" (hereinafter referred to as "the Series") is a series of educational apps for children. This Privacy Policy explains the information collected and how it is handled when using the apps in this Series.

Our Series is designed with the utmost respect for children's privacy, collecting only the minimum necessary information. All apps are developed with privacy and security as top priorities to ensure your child can use them safely.

2. Information We Collect

The information collected and stored by our Series apps varies by app, but generally includes:

• Gameplay data: Scores, completion time, number of correct answers, number of mistakes, play date/time, etc.
• App settings: Selected game modes, difficulty levels, volume settings, etc.
• Learning progress data: Mastered items, practice frequency, improvement levels, etc.

Important: All of this information is stored only on your device and is never transmitted externally. We do not collect any personally identifiable information (names, addresses, phone numbers, email addresses, etc.).

3. Purpose of Information Use

The collected information is used only for the following purposes:

• Saving and displaying game progress
• Providing in-game ranking features
• Displaying and analyzing learning history (to check your child's improvement)
• Remembering and restoring previous settings
• Improving app performance and usability

4. Information Sharing

The apps in our Series do not share the collected information with third parties. All data is stored only on your device and is not sent to external servers.

We will not disclose your information to third parties except in the following cases:

• When necessary to comply with legal requirements
• When necessary to protect our rights or property
• In emergencies to protect user or public safety
• With your explicit consent

5. Data Storage Location and Period

All data is stored only on your device (in local storage such as AsyncStorage). Data is retained until you uninstall the app or use each app's "Data Reset" function.

For example, in "Kids Trump Calculation," you can reset gameplay data by using the "Reset Rankings" function.

6. Child Privacy Protection

The apps in our Series are intended for users of all ages, including children under 13. We comply with the U.S. Children's Online Privacy Protection Act (COPPA), the EU General Data Protection Regulation (GDPR), and related laws, and take the following measures:

• We do not collect personally identifiable information
• We do not collect location information
• We do not use advertising IDs
• There are no external links
• We do not use third-party analytics tools
• In-app purchases are not offered

All apps are designed to be safe for children to use and do not contain any inappropriate content or harmful features.

7. App Permissions

The apps in our Series may request permission to access the following device features or resources:

• Storage: Used to save game data on the device
• Audio: Used to play music and sound effects

We do not request access to other device features (camera, microphone, location, etc.). Each app is designed to request only the minimum necessary permissions.

8. App-Specific Privacy Information

Each app in our Series has specific privacy information as follows:

Card Calc for Kids

• Information collected: Gameplay data (completion time, number of mistakes, play date/time), game settings (selected game mode [addition/subtraction] and level)
• Required permissions: Storage (game data saving) only
• Data storage: All data is stored only on the device (AsyncStorage) and retained until you uninstall the app or use the "Reset Rankings" function
• Purpose of use: Providing in-game ranking features, displaying gameplay history
• External integrations: No external links, no in-app purchases, no advertising IDs
• We do not request access to other device features (camera, microphone, location, etc.)

Ear Training for Kids

• Information collected: Game score data (quiz scores and number of correct answers), settings data (difficulty and volume)
• Required permissions: Audio (playing music and sound effects) only
• Data storage: All data is stored only on the device and retained until you uninstall the app
• External integrations: No external links, no in-app purchases, no advertising IDs

Kids Music Score Master

• Information collected: Game scores (in-game progress), settings information (volume, etc.)
• Required permissions: Audio (for playing music and sound effects) only
• Data storage: All data is stored only on your device and retained until you uninstall the app
• External integrations: No external links, no in-app purchases, no advertising IDs
• Purpose of use: To support your child's music education and improve music score reading ability

9. Changes to the Privacy Policy

This Privacy Policy may be changed without prior notice due to legal changes, feature additions, or other reasons. When changes occur, we will notify you via the app, our website, or the App Store description page. For important changes, we will notify you when the app is updated.

10. Contact Us

If you have questions about this Privacy Policy or the handling of data in our Series apps, please contact us at:

Contact Form: https://forms.gle/bLY5FCVtYSC1nhMQA

11. Consent

By downloading or using the apps in our Series, you are deemed to have agreed to this Privacy Policy. If you do not agree to this Policy, please refrain from using our apps.