so ran across this article that covers some cool apps every car buff should have... pretty cool. I really want the REV app. looks like it could be useful... http://www.classybro.com/2013/04/10-cool-car-apps-every-bro-must-have/
shareI have "Torque" which is a similar package for Android. It is very useful.
The problem with iPhone-based apps is that it is difficult to find an OBDII device that will support the iPhone. Most are made in China and the iPhone won't connect to just any device through bluetooth - the developers have to pay Apple.
My OBDII bluetooth dongle (which cost about $20 from Amazon) connects to any Android device but my iPhone refuses to see it.
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Fox "News": We lie, you panic!
Look for the wifi connected obd2 devices instead.
They work well.