So I think this app is an awesome idea, I am glad they did it, and am waiting patiently for them to create the same for Imperial Assault.
That said, I think I have found some sloppy / lazy programming...
(MINOR spoilers)
In the first side quest, the priest's soul one... The second time the evil... acolyte guy (master flesh moulder) shows up, it says "Place 1 master <monster>" this is the guardian, and "Place flesh moulders as shown" (then it shows only a single master flesh moulder). So as it says, I place 1 master <open group monster> and 1 master flesh moulder. The only thing is, as each of these 2 groups activates, it shows activation for minions and master, for each group. When you click the "defeat unique" for that group, it still assumes there are minions around, and you have to also say defeat group. I can see how this might be useful for if I did not defeat all the minion flesh moulders from earlier in the mission, there actually still might be minion flesh moulders. But the app already knows I defeated those minions! as I earlier told it defeat group...
Minor qualm I know, but this caused me and my buddy a lot of confusion as we were not sure we placed the "groups" (actually just 1 master each) correctly. I went back through some test campaigns to make sure, and yes, it told us to place 1 master and 1 master, then it acted like there was a whole group there should be activating and killing us.
Is this just a tiniest oversight in the coding, or did I somehow misinterpret how these monsters were supposed to be placed? I cant imagine it would be that hard for the app to know... 'I just told you to place only 1 master monster, so there is only a unique on the table, and not a whole group'...?
(and yes I realize sometimes there will be a unique within the group, like the first time the master acolyte flesh moulder guy showed up)