Finally, a great Sudoku app for iPhone and iPad solvers! The very best Sudoku puzzles! Penny Dell Sudoku features Sudoku puzzles from Penny Press and Dell Magazines, the #1 puzzle magazine publisher and the original publisher of Sudoku puzzles in 1979. Solving is fun and easy! All Sudoku number puzzles in this Penny Dell Sudoku app offer an exciting balance between challenge and great puzzle entertainment. Whether you’re a novice or a seasoned solver, we have the perfect Sudoku puzzles for you. Remember, solving sudoku number puzzles is easy and does not require math skills. This app includes all these great solving features for endless Sudoku solving enjoyment: • 4 difficulty levels - Easy, Medium, Hard and Expert • Optional timer shows your solving speed • Candidates mode offers a handy way to take notes • Complete Help section teaches you to solve Sudoku puzzles • Use Hints to Show Errors or Solve a Cell Happy Solving! Source: The Publisher Website.