Manana System (hereinafter referred to as the "Company") complies with relevant laws and regulations, including the Personal Information Protection Act, to protect the personal information of users (hereinafter referred to as the "User") who use the mobile application "Manana Japanese" and its integrated services (hereinafter referred to as the "Service"). Through this policy, the Company informs Users about what types of data are collected and for what purposes such data is processed.

Article 1: Information Collected and Methods of Collection

The Company collects or processes the following information for service provision, quality improvement, and security purposes.

1. Information Transmitted to and Stored on the Server

• Account and Login Information: User identifier, email address, profile name or nickname, profile image URL, and authentication tokens provided through Google Sign-In.
• Connection and Device/App Information: Package name, app version, OS information, IP address, and User-Agent.
• Learning and App Usage Information: App session start/end information, main feature usage history, learning/review progress stages, feature usage time, and event logs.
• Sentence Analysis Server Processing Information: User input text transmitted to the server for sentence analysis, analysis mode, token count, vocabulary/kanji analysis results, and processing time.
• Community Usage Information: Community profile information, posts, comments, replies, likes, follows, blocks, reports, and reasons for reports.
• Shared Content Information: Wordbooks created or uploaded by the User, Excel files, wordbook data such as words, meanings, example sentences, and notes, sharing status, and visibility scope.
• Uploaded File Information: File name, file type, file contents, and processing results of files uploaded by the User for wordbook import or sharing.
• Operation and Security Logs: Abnormal authentication attempts, latest DB version inquiries and download records, error logs, and app crash logs.

2. Information Stored Only on the User's Device (Local Data)

This information is not transmitted to the server and is kept only on the User's device.

• App Setting Information: App language, data language, theme, and font settings.
• Learning Convenience Settings: TTS speed and auto-play status, furigana/translation display settings on reading screens, shuffle status, etc.
• Other Local Data: Daily usage count, latest DB release cache, promotion hidden settings, etc.

3. Information Directly Entered or Uploaded by the User

• Email addresses and inquiry details provided during customer support and inquiries.
• Nicknames, profile information, posts, comments, images, reports, and block-related information entered or provided when using Google Sign-In and community features.