Any article rewriter or paraphrasing tool basically scans through the content you provide it in order to look for all the words that it can replace with suitable synonyms or substitutes. Every replaced word will appear bold and highlighted in a colorful text. Clicking on the word will give you details such as original word or other suggestions, you also have an option to add your own word.  By clicking on the original word, you can go back to original.
Very Readable Content – for this one they recommend setting the 1st input to “Very Readable” and allowing both sentence rewriting and paragraph editing (2nd and 3rd input), but disallowing automatic paragraph spinning (the 4th input). Keep in mind that this type of spinning will generate much less unique versions of your content as less synonyms will be used for the words.
If you have not used a spinner before then I would suggest that you first use something that require more human imput like The Best Spinner or Spinner Chief in order to understand the basic principles. However if you must go fully auto then I would suggest you go for Wicked Article Creator. I have it and understand it is similar to wordAI but a one off fee of $47.
Very Readable Content – for this one they recommend setting the 1st input to “Very Readable” and allowing both sentence rewriting and paragraph editing (2nd and 3rd input), but disallowing automatic paragraph spinning (the 4th input). Keep in mind that this type of spinning will generate much less unique versions of your content as less synonyms will be used for the words.
Hi there! SpinnerChief is the best article rewriter tool, because it can not only generate hundreds of new articles in minutes, but also it can rewrite articles to a very high level of human readability and uniqueness. By using the best Natural Language Analysis and Artificial Intelligence techniques, it can understand your articles in the same way as Google does and create content that is close to human quality.

Does your website need quality content in numbers? The truth is; producing articles restrict the amount of content that is written on your site if you’re the only one writing on your website and can take any author hours. Hiring a writer can get expensive. Have you ever considered using an article spinner? Spinning content is a excellent way to keep your website fresh and relevant . Needless to say, not all article spinner applications is great. Therefore it’s important to do your homework first. We propose Spin Rewriter 9.0. You can rewrite your articles using their Rewrite system. In addition, you have a Bulk Rewrite option that lets your rewrite articles with one click. You break it up into several terrific pieces of content and may take one article. The choices are endless.
Although the idea of quickly being able to create content might sound fantastic, it certainly has its disadvantages. Firstly, Google don’t like badly written content. In the past article spinners have been renown for creating poor quality content. Badly written articles are something that Google hates and you won’t make any human friends with it either.
To rank your website in search engines you have to post content at your website on daily basis. If you have more than 2 websites then it is almost impossible to write unique content on all those websites. Because for proper blogging you have to keep an eye on word count of your blog post. To do this task webmasters use article spinning tools so that they can post articles to their domains daily. Paraphrasing Tool is also used by students when they have less time to submit their assignment; they just copy content from the internet, rewrite it, remove grammar mistakes and submit it. According to the webmasters, we have the best sentence rewriter tool available online.
A website with lots of unique and human-readable content is going to give you the best ROI. The more quality readable content your website has, the more exposure it will get from major search engines such as Google & Yahoo. But creating unique content takes time as you first need to develop content creation strategies and then you need some hours to write a full SEO optimized content. How great it would be if you can produce quality content within minutes! Yes, it's possible with the help of this free Article Rewriter Tool developed by SeoToolStation. 
Now, remember that the above example was using the “Very Readable” setting of WordAI. Let’s see what content will be generated if we use the “Readable” setting. Just a quick note here that this time it took about 20 seconds for WordAI to finish the spin, so the setting we are playing with definitely has some effect and is not there just for marketing purposes:
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