Greg - SiteOrigin

Easy Reader adds a button to all your posts. When your users click this, they’ll see an easy-to-read version of content. Check out the <a href="http://siteorigin.com/2010/easy-reader-plugin/" rel="nofollow ugc">demo of Easy Reader</a> – your readers will appreciate this feature.
Easy Reader also lets you add and customize a selection of social media badges at the bottom of your post (everyone loves to share).

Easy Reader

Easy Reader is a WordPress plugin that lets your readers open an easy to read version of your blog posts.

Unfluff.io

Tired of low-quality content? Unfluff it. 
Quality content that keeps your readership engaged needs to do more than just reach a certain word count. 
Unfluff helps keep your content on-point and easily readable, can detect AI-written content, and keeps your content team accountable. 
And, it’s 100% free.

Unfluff.io – Content Optimization

Unfluff helps keep your content on-point and easily readable, can detect fluff/filler and AI-written content, and keeps your content team accountable.

Easy Reader vs Unfluff.io – Content Optimization