Hi there!
In the mobile app, using board view, there is no way to sort by custom fields, such as Priority. This is available in the web version. Not having the two match breaks the workflow for most of our team.
Thank you for sharing your feedback with us @Tony_Bova
If it’s OK with you, I’m moving this thread to the #mobile:androidios-feedback category!
I would suggest to click on the vote button at the top left corner of the thread to officially register your vote!