With the Sailing Challenge app from the American Sailing Association, you can go for a sail pretty much anywhere. This fun sailing simulator, which works on iPhone and Android phones and now on desktops as well, is also a great way to brush up on sailing skills. The app includes cool challenges that include sailing around and docking at a marina both in the day and at night, a figure-eight course around an island and a tour of the BVI's North Sound. Challenge your friends and try to get the best time! Other modules include Points of Sail, Apparent Wind, Trimming, Tacking and Jibing, Right of Way and Docking.