Yea mate, WordAI really is overpriced IMO too, which is why I didn’t rank it higher in the cost-effectiveness rankings. Now, it did change more than a few words, but I see how you would think it’s less than 80% unique. TBS is also great, but only in terms of functionality and the easy interface which allows manual spinning to be done quite fast. As for their thesaurus, I think they have a lot to improve.
In writing almost same as paraphrasing, article rewriter tool & essay rewriter tool works, but as writer we need to know clearly what are the differences of between two. In article rewriting you can change the word or phrase to keep the meaning same as well may add few more sentences to elaborate the matter more clearly to the reader. Rewritertools.com tried to present few essay rewriter tools for make the writings easier and comfortable.
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.