I have mudmaps 2 and Hema, mudmaps is a good description of there maps, looks like a kid drew them in the mud with a stick!
From my view there is no comparison, Hema is so much better its not funny.
I was actually given the Mudmap 2 app by them so I could do an evaluation on it, firstly it didn't work, even though I was effectively working for them for free getting questions answered was like pulling teeth. On our recent 11000km outback trip we tried using it numerous times but within minutes each time we switched back to Hema.
By the time I had returned from the trip they had also cancelled the account I was to use for providing them feedback, so I don't know why they wasted my time.
Just my 2c. If I could give the app away I would, and wouldn't miss it all.
Cheers Andrew