Exactly what I was looking for!

Thank you for a simple to use app that will play in the background with my music without changing the tempo of my music. Perfect! I also love the fact that it stays on your last beat rate when you close and reopen the app. No need set the beat each time. Very simple and good sized controls for turning on and off or up and down on the beat.

Maooose about Run Tempo - Runners Metronome