Mycologists say many variations of mushroom are 'indistinguishable', meaning app users could easily mistake edible ones for poisonous fungi
So. ID apps. Do I use them in my classes? Yes, but only iNaturalist, because you get an additional layer of verification by actual human beings rather than just the initial algorithmic suggestions. And, more importantly, I stress again and again and again that apps are NOT to be the only tool you use, but need to be used in conjunction with field guides, online groups, and other tools, which we also discuss in class. This is especially true if you're planning to eat anything you pick.
I get incredibly frustrated by how ID apps are often touted as all you need to identify animals, plants, and fungi. (I've even seen them described as "a Master Naturalist in your pocket".) Yes, it's nice to have a convenient tool on your phone that allows you to take a picture of something and get a suggestion of what it is. But that's all it is--a suggestion. iNaturalist, Google Lens, PlantSnap, and other apps are incapable of critical thinking and observation skills. All they can do is take the visual, temporal, and location data that you give them and churn up suggestions based on whatever they already have in their databases.
Nature identification is a detail-oriented skill that takes time and practice to learn, and if you want to do it right there aren't any one-step shortcuts. Can an app potentially narrow down the possible species you're observing? Sure. But YOU still have to be the one to do the actual work in determining whether the species the app has suggested is the one you're looking at in person or not; you CANNOT just take the app at its word, because apps can often be wrong.
And this is even more the case when we're talking about edible mushrooms, many of which have lookalikes. (Trying to figure out which Little Brown Mushroom you have can be an exercise in frustration, to say the least.) While there are a lot of people getting into foraging who are willing to do the actual work needed to determine a given mushroom's species, there are unfortunately also those who just want quick and easy answers without a lot of effort, and those are the people who are going to go no further than the app's results. The articles that promote apps as the quick and easy answers these people want aren't helping, either.
By the way, I am ALWAYS happy to help people find resources to help them with identifying various beings in nature. I'm also fine with taking a look at photos and giving my perspective on what something may be (though, again, don't use me as your only source.) While I do teach foraging, I am first and foremost a nature identification instructor, and I want to help people go about learning the life forms around them correctly (and in the case of edible species, safely.)