Company Softick, LTD created these great apps:
Klondike Solitaire, Coloring Book: Creatures, Coloring Book: Christmas, Coloring Book: Cars, Softick Coloring Book: Elementary, Coloring Book - Valentines, Softick Coloring Book - Monsters!, Classic Solitaires, Neon FreeCell Solitaire, Sudoku Classic for iPad, Sudoku Classic Free, and others..