Open Startups data with revenue, launch date & social media follower count. Probably can find some pattern? Or some suggested ideas to replicate success? Or find a niche?
Without external audits, there's no reason to believe any of the startups on this list are giving real numbers. In addition, third parties like analytics SDKs or payment processors, which in principle have the capability to easily audit usage and financial data, seem to never do this business. Then there are non-primary-data-source firms like SensorTower and AppAnnie. They are always reactive to (not predictive of) "…
So, I would say this data is real.
But only point to note is the figures are without expenses deducted. Not profits. But only revenues.