Tuple - Tuple is a Mac-only remote pair programming tool for discerning developers
StoryMill - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless and many more. Based in MN.
replit - Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
BlankPage - Stay motivated to write, and finish your story
USE Together - Collaborative screen sharing with multiple mouse cursors
Manuskript - Open-source tool for writers.