I tap out a lot of ideas on my phone (android) and for this I have found Google docs with SwiftKey keyboard to be the best. Word on the phone is a terrible mess. I prefer cloud based word processors because they have version history. I got angry with OneNote because its the only MS app that doesn't have version history and I just lost some work while trying to copy and paste it into a word processor. I would like to try Scrivener but will wait until v3 is out on Windows to check it out.