Is there any android applications out there that can track my speed by gps, then if I go under my own defined speed I get an alert or something played from the phone? I'm going to run a test soon, and I calculated that I need to run at least 15 km/h the whole test to complete it with the best grade posible, I've done that on a tread mill, but that's easy as the speed is set for me and its easy to lose speed if you run without treadmill.
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