I've been an avid runner since elementary school (started in track) and have been running ever since. I go for a run pretty much every morning (while it's nice & cool) and I like to use the Nike app. I've used it for years and it's worked really well for me. You can use different settings for time, distance, etc. It gives notifications after you run so many miles, the half way point and when you're close to finishing (which I find makes it easier to know how much farther I have to go). It tracks your pace, which I like because I try to run at a certain minimum pace and if I catch myself slowing down too much I can know that I should speed up. At the end it tells you how far you ran, how long you took and your average pace throughout. It keeps record to see if you're improving.