How accurate are app revenue estimates?
Short answer: any tool that gives you a single, confident number for an app's revenue is hiding something. Affordable app-market estimates are genuinely uncertain. The honest move is not a precise-looking number; it is a number with its confidence range attached.
Why a single number lies
Two apps that look similar from the outside can earn wildly different revenue depending on price, conversion and monetization. A single figure pretends that variance doesn't exist. It looks precise — until it's 3× off.
What a confidence band means
Appdex shows a range (e.g. $180k–$310k/mo) and a confidence (e.g. ~89%). The width of the band IS the honesty: tight where we have lots of comparable real numbers, wider where the data is thin. You decide with eyes open.
How to read the band
Treat every estimate as a directional range. Tight bands are better for quick ranking decisions; wide bands are still useful for order-of-magnitude screening, but they should not drive a major spend decision alone.
FAQ
Can any free tool match enterprise accuracy?
No. The best affordable estimate product can do is be honest about uncertainty, which is exactly what a confidence band is for.
How should I use Appdex estimates?
Use them to compare relative scale, spot outliers, and decide which apps deserve deeper research. The range matters more than the midpoint.