Company IT Focus created these great apps:
Jigsaw HD, Jigsaw HD Free, Jigsaw HD Daily Stuffs, Jigsaw HD Daily Stuffs Free, Real Sticky HD, Jigsaw Ultimate HD, DictNote - English Dictionary with Sticky Notes, iTudien - Từ điển Anh Việt, AKList - Ariang Karaoke List, iCaro HD, and others..
