Audubon Field Guides has developed a nice suite of apps that can be handy when you’re out in the field. I’ve enjoyed their actual book guides as catch-all field guides that cover a lot of species and these apps serve that same purpose.
Topics include Mammals, Wildflowers, Birds, Butterflies, Mushrooms and more. While I still love thumbing through hard copy field guides, having a few apps can be helpful when you don’t want to carry a bunch of books into the field or aren’t sure what you might encounter.
Maybe you head out for a nature hike planning to investigate woodland flowers and then come across some really cool fungi, but that’s not in your book, well here you have it on your phone. It’s a nice backup.