React Native Desktop - Build OS X desktop apps using React Native
Invision - Prototyping and collaboration for design teams
GatsbyJS - Blazing-fast static site generator for React
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
Owlead - Grow your Twitter with valuable followers, effortless
Craftwork - A collection of User Interface resources made by Craftwork