Chars - Unicode Symbols Keyboard for iOS
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Falcon for iOS - Writing notes made simple
Nute - Super simple one page note taking app
A5 - Takes notes in your browser. Elegant & simple.
Roam Research - A note-taking tool for networked thought