RallyeAl

I have used it. Just this week picked up my IS250 and used it to check for fault codes before I bought the car. I used it for all sorts on my previous car, Mini Cooper S. Had it set to see coolant temp, intake temp and boost. You can set parameters within the app so an alarm goes off to warn you, i.e. oil temp, water temp reaching a certain level. Excellent app for the money.