The app offers over 150 songs, including animal, nature, theme, life, learning, English, and classical music. Users can view lyrics while listening and easily find songs by lyricist or composer.
Solve puzzles by coloring blocks around numbers to create rows and columns matching the number values. Complete grids by satisfying all number clues. Start with 4×4 puzzles and progress to harder levels.
The app provides Japanese-Korean and Korean-Japanese dictionary entries with 115,000 Japanese headwords and 139,000 Korean headwords. It includes modern vocabulary, idioms, and phrases, with pronunciation support for Korean entries.