← Back to Home 日本語

Privacy Policy

Last Updated: December 13, 2025

1. Introduction

Tsuzuku (hereinafter "the App") respects your privacy and is committed to protecting your personal information. This Privacy Policy explains how the App collects, uses, and protects your information.

2. Information We Collect

The App may collect the following information:

2.1 User-Provided Information

• Habit names, icons, and color settings
• Habit completion records (dates, notes)
• App settings (theme, notification preferences)

2.2 Automatically Collected Information

• Device language settings (for automatic language detection)
• App usage data (crash reports only, no personally identifiable information)

3. How We Use Your Information

We use the collected information for the following purposes:

• To provide App functionality and improve our services
• To store and sync your habit data (when using iCloud)
• To fix bugs and improve App quality
• To provide user support

4. Data Storage and Sync

4.1 Local Storage

All user data is stored locally on your device by default.

4.2 iCloud Sync

If you enable iCloud sync, the following data will be synchronized through Apple's iCloud service:

• Habit data (names, settings, records)
• App settings
• Achievement badges

Data stored in iCloud is managed according to Apple's Privacy Policy.

5. Sharing Information with Third Parties

The App does not share your personal information with third parties except in the following cases:

• With your consent
• As required by law
• When necessary to protect life, body, or property

6. Analytics

The App currently does not use third-party analytics tools (such as Google Analytics). If we introduce such tools in the future, we will update this policy accordingly.

7. Advertising

The App does not display advertisements.

8. Data Security

To ensure the security of user data, the App implements the following measures:

• Data encryption (when syncing via iCloud)
• Use of secure data storage
• Regular security updates

9. Children's Privacy

The App is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.

10. Your Rights

You have the following rights:

• Right to access your data
• Right to request correction of your data
• Right to request deletion of your data (achievable by uninstalling the App)
• Right to request data portability

11. Changes to This Privacy Policy

This Privacy Policy may be updated without notice to reflect changes in laws or services. The updated Privacy Policy will become effective when posted on this page.

12. Contact Us

If you have any questions about this Privacy Policy, please contact us through our Contact page.