Adidas Go is new running app that matches music from Spotify to your pace, it analyzes your step count (thanks to iPhone’s accelerometer) and serves you music based on your taste. The app can also pull songs from your local library to sync up to your workout. If paired with the existing micoach app, Go also serves as a basic fitness tracker, complete with workout stats, activity logs. The iOS app is a free download from the Apple App Store. There’s no word yet on whether an Android version is in the works.