Company Nguyen Hoang created these great apps:
QRCodeViewer, ClockTime, SweapNotes, LearningForKid, Jindo, CandleView, VietSongList, VNNewsPlus, Han So Tranh Hung, Math4Kid, Where are you - Marc Levy, Karaoke News Song, 2048 Puzzle Edition, E-V Dictionary, Angry Stickman 3, Tap & Dots, and others..