On the plus side it has some nice pictures, but this was not written by a mycologist. Every edible mushroom is denoted by "said to be edible by some" morels and meadow mushrooms are definitely edible. Its like the author doesnt trust his descriptions.The pictures are nice but are mainly of the cap. You also need pictures of the gills and stems. The common meadow mushroom is edible, delicious but is distinguished by the color of its gills and how the stem is attached to the cap. Nice app for rough identification, but not for anything else. Sorry, but not currently worth $4.
NorthMI about Mushroom Id North America