[haywirez]

I tested it quickly with a draft text and found it useful, but only for changing a few single words. Hemingway[0] is a tool along the same line that checks readability levels, maybe combine the approaches to address things at sentence levels too?

[0] http://hemingwayapp.com/

[saddestcatever]

Agree. I was going to recommend Hemingwayapp as well! Great UI, and adds a ton of value in text review.