iPhone

I’ve always been ashamed to admit that I try harder in class when I know the teacher is looking at me. I also elevate my arabesque higher when I'm standing next to the girl with great extension. While I realize competition is part of our human nature, I wish I could push myself on my own. Now, there's a new (free!) app, Proof!, that helps you accomplish your goals by adding a little friendly virtual competition. Through the app, you set up personalized goals and share them with friends or family.

Need a quick workout on the go? Download Yogify, a free app for the iPhone or iPad produced by EA Sports. It comes with five sample classes ranging from 15 to 45 minutes long, beginner to advanced level—plus the option to purchase up to 40 additional classes. Although it's not the same as having a live teacher in the room, the program makes everything super clear. Before you even start the video, you can preview the series of poses with a step-by-step list of pictures (including tips on how to perform each correctly). Best of all?

No dancer should ever leave home without a good dose of inspiration. We've found one that's kind of awesome: The free New York City Ballet iPhone app. It’s constantly updated with fun new pictures of the dancers—both on stage and off—and has a Twitter section that shows a feed of tweets from company members. Best of all, it contains links to top NYCB video clips with dancers explaining their approaches to roles and dishing about what it’s actually like behind the scenes. Find it in the App Store.