The app is lame. I used it to id a mushroom Id picked. After configuring 10 characteristics of my sample mushroom, the app returned a whole slew of "possibilities" of mushrooms that had all kinds of characteristics that my sample did NOT have. My sample was brown, but the app returned mushrooms of all sorts of colors --including blue shrooms!! My sample had free gills, but the app returned mushrooms with free gills, attached gills, decurrent gills, even porous gills. My sample had no ring around the stem, but the number one possibility returned by the app had a ring. Its as if the app returned a completely randomly selected set of mushroom ignoring the characteristics that you type in the id the mushroom. Id like my $4.99 back please.