Let me begin by stating I am not a mechanic. I do however work on my own vehicles, and have become very proficient diagnosing mechanical/technical problems over the years. Between crank sensors, abs sensors, “stabila track”, O2 sensors, and cadalytic converters, this blue driver app/hardware combo is the MOAB in my arsenal. BlueDriverOBD2ScanTool paired with the “Blue driver” OBD2 device is simply amazing. I have been using his device for a year, and the information that BlueDriverOBD2ScanTool provides is substantially beneficial to anyone who repairs vehicles. I can diagnose problems and narrow down the true cause of warning lights faster then ever. I also use the record feature to monitor actual engine temperature if I am running hard during autocross. I have used this on a 2004 Cadillac, 2014 Accord, 2007 trailblazer ss, 2002 Subaru, 2006 impala ss, and it had worked flawlessly on my I phone 6. Also, they are constantly updating the software. This is a great company and I want to let others know that this product will not let you down. Thanks Lemur.