While the ever-expanding features of Microsoft Word and Apple's Pages can be handy, sometimes minimalism wins. Focus on content with this app's clean white page, onscreen keyboard with common punctuation marks, and a typeface optimized for iPad screens.
WIRED Dropbox integration. Two-finger swipe gesture for undo/redo. FocusMode blurs all but the few lines you're working on.
TIRED No password protection for files. Dropbox syncing can be problematic.