I bought Mangools this weekend, and just before the 48 hour refund option closed, I found RanksPro on AppSumo.
Considering the price difference and the fact that I had not spent a lot of time in Mangools, it was an easy decision to aks for a Mangools refund and switch over to RanksPro.
I am not an expert in SEO/ranking, but the results in the two tools as far as keywords, ranking, domain authority and backlinks seem to be comparable.
As long as the tool helps give me direction in developing my two websites I am happy. They will never rank number 1 in the world (never say never), but I am pretty sure both Mangools and RanksPro would be able to help me outrank my direct competitors. With my RanksPro subscription I support a startup, their customer service so far is excellent, and the money saved pays for Valentine's Day, so the significant other is happy too.