PaleFlyer
Member
Appcar looks pretty legit, and they have a pretty long list of stuff they say they can do on a 4th gen. They also say they support the cheap ELM327's, over the expensive OBDMX+. But they don't seem to have any sort of "try before you buy" option (I haven't looked to see if anyone has uploaded the executable *free*.)App-car is really the only other alternative ... https://appcar-diagfca.com/en/
With that said Alfa is the way to go. It has more features and better support from everything I have seen.
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Would like to confirm it works before I drop $ on it. Then again, still need the damn "security bypass" for my '18 first...