I would never, ever, rely on an app to properly identify mushroom types. To do so, is, not just in my opinion but in the opinion of expert mushroom foragers, an invitation for a potentially life threatening disaster.
Where I lived in Catalonia, mushroom foraging was extremely popular. Every year one could see people with little baskets scouring the woodlands and pastures for mushrooms; whole families often involved. Every year while I was there, someone died from eating the wrong type and many more got sick.
I've been out in the woods with an elderly women many at the local village describe as a witch; the good type I should add. She was highly regarded and local people would go to her for remedies for various complaints for which this witch would make up a potion. Judging by her reputation many of these potions worked. The knowledge she had acquired over the years of walking the mountains looking for herbs, roots, flowers and mushrooms was absolutely staggering.
The one single bit of advice I got given by this women when walking in the mountains with her is don't consume anything without getting an expert opinion on the type of whatever it is one found, especially mushrooms.