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.
Noted - Social music discovery
Pure List - Pure List is the best to-do list and reminders app to help you stay productive.
Better Notes - Simple notes app that ties notes together with #hashtags
Nute - Super simple one page note taking app
Notion for iOS - A collaborative editor for notes, tasks, and wikis