For the obsessive golfer, swing analyzers are a must-have. They present players with myriad data points and chart what is actually happening instead of what it feels is happening. We like the Swingbyte, not only for the copious amount of nuanced data it provides, but also for its ability to capture video as it maps your swing plane through impact. The app, available on the iPhone, on the iPad, and soon on Android devices, allows users to watch an animation of the swing alongside video of themselves making it. They can self-critique or share their progress with friends or an instructor. [$149;]