So far I’ve just been using the basic obd2 Bluetooth things but the apps available are very limited. I’ve been able to do some custom PIDs for some of my vehicles, and others you can often find tools that allow you to do some specific programming but it lacks a lot. I’ve been considering some of the ones you can find for around $400 from China but I’m not sure if those are anywhere near the same level as the 10k snap on ones.