This app was mentioned in 1 comment, with an average of 1.00 upvote
My local credit union is the same, I can use their app without issue. They've really impressed me with how well they've kept it up to date and supported new features. They added mobile check cashing back when bigger banks were the only ones that supported it. They were pretty quick about updating to material design as well.
https://play.google.com/store/apps/details?id=com.ifs.banking.fiid8027