The first time you hear "Eye of the Tiger" or "Harder, Better, Faster, Stronger" during a run, it feels like a revelation. The twentieth time you hear it, it feels like just another blast of white noise. Crafting the right mix or playlist for your workout is tough, crafting one that doesn't get stale is tougher and crafting one that reacts to your body is nearly impossible. That's where RockMyRun comes in! Available for iPhone and Android, this smart app works with the world's best DJ's to create workout mixes from all of your favorite songs and then adjusts the music tempo to match your cadence and heart rate. The app is designed to increase enjoyment and motivation during exercise, so leave your playlist behind and start rocking!