RunKeeper Pro App
Best for: Smart-phone owners who want the simplest solution
Details: If you don’t mind running with your expensive phone in hand, this app tracks everything from distance and pace to your route (using Google Maps). Although $10 is pricey for an app, “it’s cheap relative to all you’re getting,” says Lovato. And like any good (human) trainer, RunKeeper offers verbal feedback to keep your pace. [$10; runkeeper.com]
Rating: 7 out of 10