Looking into a OBD II scan tool / Donnegal?? to work with my Iphone 4S. I've seen ones that work with the Andriod system but have not seen ones that work with the Iphones. That is in a Bluetooth form..

I've seen them in the WI FI capability but if I'm away from a WIFI area it woild make using the scan tool pretty much useless. OR am I totally wrong??

Suggestions greatly appreciated. Tired of using the auto parts stores ones that really dont go n do a whole lot for me.