Best Birding App/Guide

I got the iBird Pro a few years ago and it is my go to guide while birding in the field. The photos are excellent and the sounds are perfect for definitive identification. It cant completely replace a hand held guide but I dont want to lug a book into the field. The phone app is perfect and I can add a life bird easily in notes section. A must have for birders!

PamellaKH about iBird Pro Guide to Birds, v9.1