Last Updated: March 22, 2026

SUDA ("the App") is operated by Kangmin Jin ("we", "us", "our"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application. Please read this Privacy Policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

1.1 Information from Authentication Providers

When you sign in using Google or Apple, we receive the following information from the authentication provider:

• Your unique user identifier (UID)
• Your email address
• Your display name (if provided by the authentication provider)

We do not receive, access, or store your password.

1.2 Information You Provide Directly

• Nickname: A unique display name you choose during account registration
• Quiz Responses: Your answers to quiz questions within the App
• App Preferences: Your selected language preference (English or Japanese)

1.3 Information Generated Through Your Use

• Quiz Results: Scores, completion dates, and earned Yup Coins
• Attendance Records: Daily check-in dates and consecutive streak counts
• Transaction History: Yup Coin earnings and spending records
• Character Customization: Your selected character and equipped virtual items

1.4 Information We Do NOT Collect