Privacy Policy

1. Information We Process

This site does not require your name, phone number, postal address, or account registration. The following information may be processed to provide site features:

• Online ranking: nickname chosen by the user, score/typing speed, accuracy, completed sentences or words, and record time
• Visitor analytics: hashed random browser ID, visit timestamps, device/OS/browser category, referring domain, language/menu use and estimated active time; IP-hash fallback when browser storage is unavailable
• Basic web-server logs: access time, IP address, browser information, and similar technical data may be logged automatically by the hosting environment

2. Information Stored on Your Device

General typing-practice records and settings are stored in your browser's local storage. If you choose “Record Ranking,” that ranking entry is also sent to the server.

• Typing speed, accuracy, practice history, and best records
• Consecutive visit count, badge achievements, and beginner-course progress
• Selected language, sentence length, and other settings
• Practice text that you enter or load yourself

You can remove local information through your browser's site-data/history controls or by using the site's own clear/reset controls where provided.

Practice days and weekly goals, completed transport routes and visited station/stop names, continuation positions, missed target words, review counts and review dates are saved in this device’s browser. These personal practice records are not sent to the visitor analytics server. Clearing site data removes them; they do not automatically sync between devices.

3. Uploaded Text Files

Text files used with the “My Sentences” feature are processed in your browser and are not uploaded to the server for storage.

4. Advertising and Cookies

This site may use third-party advertising services including Google AdSense.

• Third-party vendors, including Google, may use cookies to serve ads based on visits to this and other sites.
• You may manage personalized advertising in Google's ad settings.
• You may also block or delete cookies through your browser settings.

5. Visitor Count and Access Logs

Visits are counted once per browser within a rolling 24-hour window. A random browser ID distinguishes returning visits even when the network IP changes. A new session begins after 30 minutes of inactivity. If cookies and local storage are unavailable, the IP-hash fallback remains approximate. Existing IP-based records are preserved; detailed analytics begin only after the update.

The analytics ID is stored in a first-party cookie and local storage for up to one year after last use; the server stores its HMAC hash. Analytics include timestamps, device category, OS, browser major version, referring domain, selected language, menu/start/finish events, page loads and estimated active time. Raw IP addresses, full user-agent strings, typed text, search terms, referring URL paths/query strings and precise location are not stored in this analytics database. Records remain until the operator deletes them. Advertising and hosting logs are separate.

Use “Visitor statistics” in the left menu to stop collection and clear the browser analytics ID. This does not automatically erase already stored server records. Do Not Track and Global Privacy Control disable collection by default. Clearing site storage, private browsing and using another browser or device can appear as a new visitor, so counts do not represent exact individual people.

6. Users Under 14

The site does not operate a member-registration system. Users under 14 should use the site with guidance from a parent or guardian.

7. External Links

If you leave this site through an advertisement or external link, the privacy practices of the destination site apply. Please review that site's privacy policy.

8. Contact

For questions about privacy or data handling, contact:

• Email: hipal@naver.com

9. Changes to This Policy

If this policy is revised, the updated text will be posted on this page.