Company sparrowapps created these great apps:
Counter Simple, sudokusol, MinJun Puzzle, EunJun Puzzle, sudok9 free, MJ & HJ Puzzle, sudok9, Taegeukgi, Taegeukgi free, Adding Man, Adding Man free, TucksJunior, 그냥 장기판 free, 그냥 장기판, ALTIBASE HDB Manual, 에어 큐아이, sudok9 II, and others..