ユキのん工房Yukinon Lab
T-BreakAI

T-BreakAI Privacy Policy

Last Updated: October 13, 2025

This Privacy Policy explains how personal information is handled when using the T-BreakAI application ("App"). Please read this before using the App. The App respects user privacy and is committed to protecting personal information.

1. Information We Collect

1.1 Information provided by users

  • Task information: titles, descriptions, notes, tags, deadline settings
  • Priority settings: task priority (high/medium/low)
  • Notification settings: notifications on/off, notification timing
  • App settings: theme, display options, filter/sort settings

1.2 Automatically collected

  • Usage statistics: AI feature usage count, app usage
  • Device information: notification permission status, app version
  • Tutorial progress: first-time guide display status

The App does not collect personally identifiable information (PII) such as name, email address, or phone number. Information collected is limited to task management data entered by users within the App.

2. How We Use Information

2.1 Main purposes

  • Providing task management: saving, displaying, and editing user-entered tasks
  • Providing AI features: automatic task decomposition using OpenAI API
  • Providing notifications: sending notifications based on set deadlines
  • Saving app settings: storing user preferences (theme, display options, etc.)
  • Service improvement: collecting statistics to improve the App

2.2 About AI Features

The App's AI features send the title and description of user-entered tasks to the OpenAI API to assist with task decomposition. This allows users to receive suggestions for more detailed subtasks.

3. Sharing with Third Parties

3.1 OpenAI API

  • Shared information: task titles, descriptions, and related parent task information
  • Purpose: AI-powered task decomposition support
  • Data retention: per OpenAI's data retention policy

3.2 Google Play Services

  • Features used: app update and review functionality
  • Collected information: app usage statistics and crash reports

We do not provide personal information to third parties beyond the above without user consent, except as required by law.

4. Data Storage and Security

4.1 Local data

  • Task information and app settings are stored in the device's local database.
  • Data is encrypted and cannot be accessed externally.
  • All local data is deleted when the App is uninstalled.

4.2 Security measures

  • Protection through data encryption
  • Appropriate access control management
  • Regular security audits

5. User Rights

Users can access all data stored in the App. Stored information can be viewed and edited from the task list and settings screens.

  • Deleting individual data: tasks and settings can be individually deleted within the App.
  • Deleting all data: all data is deleted when the App is uninstalled from the device.

6. Data Retention

  • Local data: retained until App uninstallation. Manually deleted data is removed immediately.
  • OpenAI API: per OpenAI's data retention policy (typically within 30 days)
  • Google Play Services: per Google's data retention policy

7. Children's Privacy

The App does not intentionally collect personal information from children under 13. If a child under 13 uses the App, please do so under parental supervision.

8. Changes to Policy

This Privacy Policy may be updated as needed. Important changes will be announced within the App. Updated policies take effect upon posting on this page.

9. Contact

For questions or concerns about this Privacy Policy, please contact us via the app review section on Google Play Store. We will respond as promptly as possible.