Writefull - Writefull provides you with the tools you need to improve the quality and consistency of your writing.
Hemingway - Hemingway App makes your writing bold and clear.
Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Cleartext - A text editor that allows only the 1,000 most common words
Just Not Sorry - Highlight 'weak' words so you can edit them out