I've read another thread on the same issue. But again I'm asking this because I'm kinda at the end of my wit!
I tried almost all the tools I got in that thread and by searching Google(those were Free). Even the authorized one from Google (tools4google.com). But I got a huge difference between Gooogle's one and others. I also manually searched Google after clearing the cookies and cache, but still there's about 9-10 difference in results. I got about three same result from different tools. And rest are with differences including tools4google.
So, please inform me a single tool that will provide the exact ranking of any keywords what is actually found by any searcher on Google.