Apple ipod

What is a good free GPS for your iPhone?

I had two of them (GPS tracker2) (tracker), and I was testing and they were a little sore. They have a right to the city, but I mean I need a better functioning. can anyone help?

IPhone GPS has a poor performance against with other phones … is not stable and accurate enough is not enough … Several programs I do not think that one of them is free … In fact, the AppStore applications are the latest GPS expensive ($ 30,100) … Tomtom is a good … But I still think its not going to be good … Hope this helps …

AllSport GPS / LE for iPhone – free GPS-enabled workout tracker