Cloud: iCloud, Dropbox, Google Drive, and Box
WriteApp is the software to get if you take lots of notes, and don't like the ho-hum and bare bones nature of the standard Notes app. No matter what you're doing, you can always access the app from the menu bar to jot down some notes. The app works on both desktop Macs and iOS, and syncs your notes between them using iCloud, Dropbox, Google Drive, or Box.
On the desktop version, three-column view is standard for the non-fullscreen app, so if you like to write in a simple and distraction-free space, you'll need to go fullscreen — for a note-taking app, it's great.
Mobile users report issues with iCloud syncing: for one, it doesn't always upload every file. Another iCloud complaint is that the way Write syncs files makes file management difficult — namely, there is no in-app file manager, and the app does not sync documents into a folder in iCloud, which creates a mess. There is also an incongruity on functions across mobile apps: the iPad, inconspicuously, is missing a sliding key row that the iPhone features.
Overall, the desktop app seems to be much better at performing its functions than its mobile counterpart. And since a lot of time has passed since the last update, it's safe to assume that devs have abandoned this project, leaving users to deal with a buggy experience.
Mobile app buggy