Tube Map - London Underground — Revenue & Downloads Estimate

Appdex publishes honest confidence, not fake precision. Tube Map - London Underground's readout is a conservative point estimate (~$20k/mo, ~88% confidence) — when the engine can say more, it shows the full range or a verified figure.

Behind this number is an engine that never stops: it re-processes millions of rows of App Store signals every day across 1M+ apps, rebuilds every estimate nightly, and grades its own accuracy against tens of thousands of independently known figures before anything ships.