Hello!
I’m afraid we can’t quantify results nor guarantee improvements.
Search engines are black boxes: We don’t know how they work; we just follow guidelines set forth by Google, Bing, and Yandex. Google has the biggest say in this since they hold a majority market share.
So, you can’t test the plugins on merits other than code quality and features:
1. Do they do what they’re supposed to do? One test of this kind is public. Summarized: Yes.
2. Do they have all the features I need? That answer is probably yes.
If your website is not generating any revenue, then throwing all the tools you can find against it probably won’t help. So, you can save a few bucks by foregoing our premium software.
But, we’d really appreciate any purchase, since it helps the development of the free plugin too.
