Using iPhone as a Notetaker

I'm using my iPhone with an Alva BC640 braille display. I'm wanting an app that will allow me to store notes and do searches (preferably via a hotkey) in those notes in Grade II braille. I've tried AccessNote version 1.2, but I can't search in Grade II Braille, and it takes too long for me to move from one line to the next with my braille display. I'd love to hear any solutions to this, even if it involves continuing to use AccessNote. Thanks! Dave