Sad to hear about the lack of customer support. I could understand it if they said, 'here is the info, but we cannot guarantee it works properly for your vehicle', but to turn their back on you is not right.
Scan Gauge is an option, though you can only see 4 values at a time.
A tablet, OBD2 Bluetooth adapter and an app like Torque Pro is another option.
https://play.google.com/store/apps/deta ... rque&hl=en
Herb
[EDIT: you can even get roll and pitch on your device, just in case]