If you are interested in learning Chinese idioms, 키워드 4字성어 is the perfect app for you. Developed by Murimstar, this free Android app provides access to over 4200 Chinese idioms, sorted by topic. The app allows you to select from large, medium, and small categories, and to navigate through the idioms in both top-down and bottom-up modes. You can also use the search feature to find idioms that contain a specific character.

The app also includes features such as the ability to move to a desired location using the up, down, left, and right functions, and the option to return to the previous page. The idioms are categorized by topics such as philosophy, communication, language, tradition, and wisdom, making it easy for users to find what they are looking for. Whether you are a beginner or an advanced learner of Chinese, 키워드 4字성어 is a great resource for anyone interested in mastering Chinese idioms.