This is absolutely useless. It claims it rewrites English sentences, but it just offers words alternatives, which is only nouns. Also, most of those suggested alternatives are unable to use. If you see their maker's home page, Whitehat Box, you can see numerous people request the refund. It's far from western progressive software like Grammarly or sketch engine. They stole my money with the diceiptive advertisement.
Manual spinnig is still needed when you want to create ultimate spun and readable articles. You must spin paragraphs and sentences if you want to create the ultimate spun article, it used to be a pain to spin huge articles in paragraph and sentence mode, the nested text always made it diffcult to find the right sentence. But now, with SpinnerChief 5's spin tree function, everything becomes clear and easy! All paragraphs and sentences are organized very well, you can locate, modify and spin them easily.
Use Article Rewriter to rewrite or paraphrase articles, full-length essays, or to find different and better ways to express simple words, phrases, or sentences. Whether you wish to reproduce textual content for a website, business document, email, tweet, or term paper, article rewriter will do the trick. Facilitate essay writing, expand your blogs and enhance your website’s online visibility with quality content now.
Imo it is not possible for google to detect properly spun content, it is not worth computing power it requires. They can do this using ngrams for example, but it is uses a lot of queries. And for example article spinner I coded beats this algo, so google cant detect that the content is spun. Manual spinning is also good but it takes more than 30 minutes per article.