The location deck card selector for the AH Toolkit app for the ipad/iphone does not seem to have all of the cards available that are in the actual physical game. I have the base app plus the Dunwich, Innsmouth, and Miskatonic expansions, and the most important part of this app is the location deck in my opinion, because when running these expansions together it helps eliminate over 40 decks of cards when trying to keep the decks seperate for each expansion.
The main problem is that the location deck randomizer in the ipad app usually repeats the same card over 2 or 3 times in a row for a specific location, and after going through 15 or 20 cards, it only seems to show 6 or 7 different cards from both the base game combined with the Dunwich and Innsmouth expansions. I haven't done an actual technical experiment to verify this, but I have gone through each location for these expansions mulitple times (like I mentioned 15 to 20 times for each location), and besides the repetition problem, there are some cards that seem to never show up.
A suggested fix for this would be to put each unique card in a stack for each location (9 arkham stacks, 3 Innsmouth stacks, 3 Dunwich stacks, and the seperate otherworld stacks), and every time a new card is selected from a stack the old card would move to the bottom. If the players notice that the stack begins to repeat, than a shuffle button would be available to randomize the order of that specific stack. This should be a fairly simple fix to make the location deck (which is effectively broken in my opinion) a valuable asset to any game, and the best feature provided by the toolkit.