사자성어2288 고사성어 유래 해설 및 검색 is an Android app developed by KONG that falls under the Education & Reference category. It is a free app that serves as a dictionary for Chinese idioms, also known as "Chengyu" in Mandarin. The app has a unique feature that allows users to search for idioms by their last or middle character, which is not commonly found in other Chengyu dictionaries.

The app contains a total of 2288 idioms, divided into 155 levels based on difficulty. Each level consists of 20 idioms. After completing each level, users can take a test to assess their knowledge and understanding of the idioms. The app also has a feature that displays the user's progress by marking the completed levels with green or blue circles, indicating the general level or the Chinese proficiency level respectively.

Overall, 사자성어2288 고사성어 유래 해설 및 검색 is a great tool for learning Chinese idioms. With its unique search feature and well-organized levels, it is easy to use and provides a fun and engaging way to learn Chinese idioms.