I use the notes the notes app quite frequently between my iPhone 5s, iPad 4, and MBP. For some reason, changes to individual notes I make on my iPad do not appear on my Mac or iPhone. Changes I make on the other devices do show up on in iPad notes app almost instantaneously. To solve this problem I made sure the software on all devices is up to date and checked that the default account for Notes is iCloud on 5s and the iPad. What else might be causing this issue?