Cadence lets you set the tempo of your iPhone's tunes
Cadence is an iPhone app that creates custom playlists from your iTunes library, each set to a different tempo. If you're a runner, a DJ, or just someone who likes to keep everything going to the beat, it's worth a look. To use Cadence, you'll have to download a small Mac desktop app that automatically finds the tempos of the songs in your library. Scanning takes time, but you only have to do it ...





