📜 Yoboseyo Privacy Policy

Effective Date: August 31, 2025

Last Updated: August 31, 2025

1. Overview

Yoboseyo (the “Service”) values your privacy and complies with the Personal Information Protection Act and other applicable laws. This Privacy Policy explains what information we collect, how we use it, and your rights regarding your personal data.

2. Information We Collect and How We Collect It

2.1 Information Collected

Required Information

• Apple ID Information: User identifier provided through Apple Sign In.

• Nickname: Display name entered by the user.

• Learning Preferences:

  ◦ Preferred language settings (native language, learning goal)

  ◦ Learning level (beginner/intermediate/advanced)

  ◦ Preferred AI voice

  ◦ AI friend’s name setting

Automatically Collected Information

• Service Usage Records:

  ◦ Learning progress (XP, levels, badges)

  ◦ Conversation history with AI

  ◦ Grammar and vocabulary learning history

  ◦ Daily study time and consecutive study streaks

  ◦ In-app user interactions (e.g., button taps, screen views, navigation paths)

  ◦ Session information (session duration, frequency of app use)

• Device Information:

  ◦ Device identifier (Device ID)

  ◦ App version

  ◦ OS version

• Voice Data: Temporarily processed during real-time AI conversations (not stored).

Not Collected

• Real name, date of birth, national ID number, or other sensitive data