Paceroo is an app that's meant to improve your running. You fire it up, select the distance you want to run, a target time, and the app will optimize your run to help you succeed.
Keep the ring green and in the center and you'll have the right pace to hit your target. If you go too fast or too slow at any time, the app will let you know.
After completing your run you'll receive a "progress score" which will be used to track the quality of your runs. As long as you increase your score over time, you are making progress, regardless of the distances you run!
Have fun and let me know if there are any new features you'd like or if you have any issues while using the app.