The original Launch X431 Pad use Android OS. I think the app for X431 adapter can be use with the Android device without X431 Pad original!

I’m using the link – it can be install ited on any appropriate android:

http://www.launcheurope.de/launch/download/X-431_PADII.apk

I have Launch X431 HD adapter:

http://www.cardiagtool.co.uk/launch-x431-hd-heavy-duty-adapter.html

Question and answer:

the device X431 HD can work with 12V in the car? Or only truck? 

It can work on both cars and trucks if you have the appropriate subscription.
Also, the good folks who manage x-diag pro can hook you up with the subscription to cover both trucks and cars, ie 12v and 24v.

So this download is useless without subscription of $100’s per year ?

For 12v truck easydiag can work if you have files ect  But for 24v truck u will blown unit  Original Xpro3 or launch devices for truck 24v use adaptor to protect unit .

the launch hd2 module can be activated to run x-diag pro s with both 12v and 24v car lines. I had mine done about a year ago. The guys on here who are doing it can hook you up.PM me if you need any further assistance.