After losing 3 books to water damage ( during tourney's) a friend made a great suggestion and that is what I did. Never had a problem since. The problem I see with Apps is you can not see a phone screen in a lot of different light conditions, the screen is small ( I'm half blind).
I took a short amount of time and put an excel spread sheet together with the baits I use, print them out and tape inside each box facing out. That way no matter the bait your going to put out, it's right there with the bait/baits.