Query about birding apps

Rubba Johanna

Hello, everyone!
Pardon the query--I just got my first iPhone and am wondering which app(s) are best for birding in the field. I used Audubon on my last phone, but found that it had a few shortcomings. And a new iPhone has a good deal more power. For a long while I used iBird Pro and recall liking it. Suggestions would be much appreciate! Thanks!

Johanna Rubba
Grover Beach