Android App with intervals and speed alert?

Anyone know of one? RunKeeper is perfect at alerting you each interval. But it does not allow you to specify a speed. Also, if I go below the minimum speed I've decided on there is no alert to let me know that. Of course that makes sense since it does not even allow you to specify a speed. I need an app that not only allows intervals, but lets me enter the speed I want each interval to be and then if I go below that speed there is a signal to let me know such. Does such an app exist? Plenty of the apps have an interval option and even show the speed on the screen but I don't want to constantly look at the screen to see if I'm still running fast enough. I know there has to be an app that does this. In fact, I think I had one on my Iphone that did that but cannot remember the name of it.

Hope I'm making sense.