Nike + Running Sports App
I have reviewed the Nike + Smartphone Ap  in the past, but I have seen improvements to it, so it would be a good idea to review again.
I have an Apple 4 phone and you do not need the small sensor attachment as it is built in. It is also connects to
Facebook easily and it can also be connected  to Pinterest.

As for running, you can also set for indoor or outdoor with several options of Music playlists. You can also choose a powersong which you can easily summon during a tough hill climb or at the end of the race. Overall, with the improvements,  it is a very technologically advanced application well worth its 29.95 price in most stores. It says to buy a Nike shoe with a slnave for the sensor chip, but I can get away with cutting a slit in the tongue of my shoes to save cost.