Any opinions on the best OBDII apps for Android and Bluetooth scan tools?

I use the BAFX Bluetooth OBD2 scan tool ($23 on Amazon) and the Torque OBD Pro app ($5)

 

I'm eager to try out DashCommand. I've just been too lazy to buy a Wi-Fi OBD2 interface since I have an iPhone. Once my friend gives me back my iPhone 4 then I'll run it with my Pioneer's App Radio to have it on my head unit.

 

Car Gauge Pro - adjust timing, shut down individual cylinders, all sorts of diagnostic stuff. Do a search for it.

 

This app is great with Android. Quite a few members advanced their timing 2* with this app.