천자문의 달인전국랭킹 is an educational app available on Android. Developed by Bosu Co, this app aims to help users memorize all the Chinese characters in the Thousand Character Classic and test their knowledge.

The app offers several features to facilitate learning. Users can engage in flashcard-style memorization exercises for each section of the characters. They can also review the characters they have learned and those they still need to memorize separately. Additionally, the app allows users to take tests for each section of the characters and provides an error note feature for revisiting incorrect answers.

For a comprehensive view, users can access a list of all 1000 characters. The app also offers a mock exam of the entire Thousand Character Classic to assess the user's proficiency. To make learning enjoyable, the app includes games as part of the learning process.

Furthermore, users can compare their skills with others nationwide by checking the national ranking feature. The app is free to use and falls under the Education & Reference category.

Please note that the developer's contact information is not provided in the review.