Every tool that publishes a download or revenue figure for an app you do not own is running a model over public signals. Nobody outside Apple can check those models, including the people who build them.
We built one too, to see how far it got. It orders apps plausibly and its magnitudes are unvalidated, so it stays off every page a visitor can reach — and a test in our build fails if one of those figures ever appears on one.
This is not a roadmap item. A number nobody can check is worse than no number, because it gets treated as a fact and planned against.