Nisus Software has released Nisus Writer Express 4, an update of its writing app for macOS. 

New features in version 4 include an updated full screen view, focus mode for the active line and paragraph, typewriter scrolling, a redesigned user interface and palette system, cloud sync for almost all settings, icons updated for Retina displays, and other fixes and enhancements.

Nisus Writer Express 4 is available at the Nisus store (https://nisus.com/Express/) and the Mac App Store for $26. An upgrade version is available from the Nisus store for $20. An academic version is also available.