가배한자 is an Android app developed by moresmartkorea that offers a comprehensive dictionary of 5,500 Korean characters, including the 3,500 characters from level 1 to level 8, as well as 2,000 commonly used characters beyond level 8. It also includes explanations for 1,500 idioms, along with the original texts and interpretations from famous books such as "주역", "명심보감", "대학", and "도덕경".

The app provides convenient search features, allowing users to search for characters based on their radicals, stroke count, pronunciation, or meaning. Additionally, the app has optimized the search and retrieval process by compressing the character images and necessary text files, eliminating the need for constant communication with the data server and enabling fast searches and lookups.