It's a good app for driving (you can see your gps, open some apps safer) but It's something wrong with the app when I plug in the cable to my phone the sound quality It's so different than when I use it with just bluetooth (I hear better sound quality and more bass)... [update: they have never fixed the problem and after researching I saw that I'm not the only one with this problem, my rate of this app was 4stars now is 2stars for no support and the problem still after a year.