Features

• Support !!!!!! GAME CENTER !!!!!!!, 22 Leaderboards. 
• Five levels of difficulty. 
• Four appearances are available to be selected. 
• Pause/Resume. 
• Smart note, Auto note. 
• Automatically check for incorrect numbers. 
• Keep device from sleeping, your iPhone/iPod and iPad no longer sleep while you are thinking a puzzle. 
• Compatible with iOS4.x/5.x iPod, iPhone device, Retina Display for iPhone 4 and iPad support. 

Any reviews and ratings are all appreciated, your comments are making this app become better!!