Please enlighten us about the backend provider, I'm interested. It seems the OP of this thread is using the same backend as he's not willing to tell it.
edit: Ubersuggest mentioned by someone says in dev blog
Ahrefs says "and other third party data sources to find keywords" [0]
Pretty sure they buy data from software tools like free anti-virus scanners, toolbars, chrome extensions, VPNs, etc that resell their user's web browsing history. This is called "click stream data".
Interesting! I always thought, this kind of data was collected from a plethora of borderline shady browser plugins (SEO plugins amongst them, ironically), toolbars and alt-browsers.
This is also, why I think the data must be heavily biased. For example the HN demographic must be severely underrepresented, because most of us are careful what we install.
B2B keywords typically have 2-5x higher search volume/month than the popular tools estimate, for exactly the reason you provided. More sophisticated searchers aren't installing random anti-virus, VPNs, and plugins the SEO tools rely on to calculate keyword search volume.
That just confirmed that you're using "the same backend provider."
Buy itself that's not bad. The problem is that if you're doing what everyone else is doing, then you're probably not realizing any efficiencies. That means your prices will eventually mirror everyone elses.
So I guess it makes sense that there is innovation on the pricing model side of things.
We use ubersuggest which has a lifetime pricing, quite neat.