Privacy Policy

1. Information We Collect

1.1 Non-Personal Information

The App may collect the following non-personal information to improve our services and understand usage patterns:

• App usage data (screen views, feature usage frequency, etc.)
• Device information (OS version, device model, language settings, etc.)
• Crash reports (for improving app stability)

This information is anonymized and cannot be used to identify individual users.

1.2 Personal Information

The App does NOT collect the following personal information:

• Name, address, phone number, email address
• Credit card information
• Location data
• Photos or camera access
• Contact information

2. How We Use Information

The collected information is used for the following purposes:

• Improving app features and user experience
• Identifying and fixing bugs
• Developing and providing new features
• Analyzing app usage patterns

3. Local Data Storage

3.1 Stored Data

The App stores the following data only on your device:

• Discount calculation history (amounts, discount rates, dates, memos, etc.)
• Category settings
• Tax rate settings (8% or 10%)
• Background color preferences

3.2 Data Handling

4. Firebase Analytics

4.1 Information Collected

The App uses Google Firebase Analytics to collect the following information:

• App launch count
• Screen view information
• Feature usage frequency
• Session duration
• Device information (model, OS version, language, etc.)

4.2 About Firebase Analytics

Firebase Analytics is an analytics service provided by Google. Collected data is managed according to Google's Privacy Policy.

• Google Privacy Policy
• Firebase Privacy and Security

4.3 Opt-Out

If you wish to opt out of analytics data collection, you can disable it by:

• iOS Settings > Privacy & Security > Analytics & Improvements > Turn off "Share iPhone Analytics"

5. Third-Party Disclosure

We do not share collected information with third parties except in the following cases:

• With your consent
• When required by law
• When necessary to protect life, physical safety, or property

6. Security

The App implements appropriate security measures to protect your information:

• All data is stored only on your device
• No data transmission to external servers (except analytics data)
• Encrypted communication (HTTPS) when communication is necessary

7. Children's Privacy

The App does not knowingly collect personal information from children under 13. If we discover that personal information from a child under 13 has been collected, we will delete it immediately.

8. Changes to This Privacy Policy

This Privacy Policy may be updated without prior notice due to changes in laws or app features. We will notify users within the app if there are significant changes.

9. Disclaimer

• The App provides reference values for discount calculations and does not guarantee the accuracy of results
• Please verify prices at the store during actual purchases
• The developer is not responsible for any damages arising from the use of the App

10. Contact Us

11. Governing Law and Jurisdiction

This Privacy Policy shall be governed by and construed in accordance with the laws of Japan. Any disputes related to the App shall be subject to the exclusive jurisdiction of the Tokyo District Court as the court of first instance.