Disappointed MudMap Customer missed out on Upgrade

[NissanGQ4.2]

What a crock! Like I said before, the idea I paid $150.....thats one hundred and fifty dollars NOT FIVE DOLLARS for an app that within 4 months was to have no further development and to be replaced by a better featured app made by the same people but with a different name so there was no upgrade and they could wring another wad of cash from fools like me who bought the original program.
If this remains the status quo then the bunch of thieving pr!ks at that organisation will be having a date with consumer affairs.
There is a reasonable expectation when I pay 150 for an app that it will continue to be developed.

MM say they are separate apps with different feature sets, I don't see a problem with that, a lot of developers have more than one program that do roughly the same thing......

So have they said they are no longer supporting MMHD???