ProWritingAid

ProWritingAid is a comprehensive style editor and grammar checker that provides incredibly detailed feedback. It generates lengthy reports on style, readability, clichés, pacing, and more, making it akin to a full writing workshop. It integrates with Scrivener, Google Docs, and major browsers. Popular among serious authors, editors, and academics, it uses a freemium model with a robust paid version.

It ranks well for its depth of analysis, educational value in improving writing skills, and suitability for long manuscripts, though its interface can be less streamlined than competitors.