Is any spinner service integrated ?

Although with custom development it would be possible to add a third party spinner service, at the moment we do not have any addon developed for it. (Maybe in the future we will)

BTW Professional Addon has a feature that would allow you to do something similar but there is nothing preloaded due to the multitude of different languages.  You can configure sentences or words to be replaced by others at random.

We call it Ramdon rewrites.
It replaces words as synonyms with his own list of words.
Add in the form all words separated by commas, line by line. The words will be searched line by line and, if a word is found, it will be replaced by one of its synonyms.