best blurtooth scan software for iphone

[chatham]

looking for the best scan software and obdII tool for iPhone. has the ability to pull all codes, ABS, etc. what do you like

 

[Mooseman]

Moved to proper section.

These threads have some info:
Bluetooth Data Port & iPhone App
iPhone compatible scanners

 

[dkvasnicka]

It's been a while since I've done my research on this but I believe the best option on iPhone is DashCommand with the in-app purchase of extended codes for GM vehicles.
The app has a very antiquated UI but does the job.