SPB Sudoku doesn't support iPhone/iPad yet.

SPB Sudoku is available for the following platforms:

• Windows Mobile (touchscreens)
• Windows Mobile (non-touchscreens)

Products available for iPhone/iPad platform:

• SPB AstroQuads
• SPB Brain Evolution
• SPB Flash Cards
• SPB Online Games
• SPB Quads
• SPB Time
• SPB TV
• SPB Wallet