About Pacer
Pacer uses GPS to track your speed - allowing you to simply set your own pace of activity and be alerted via beeping, vibration or both!
Operates with a choice of mph, km/h or m/s.
NOTE: If you do not have a satellite connection, the app will simply wait to warn you of a reduction in pace until it can firmly establish your speed.
by S####:
It is fine if you are running a whole number speed, but if you need say 6.5 mph it's difficult. I even tried converting it to km/h and m/s but none can give me exactly what I want.