Extensive research is published preliminary on the XDA forum, showing the problems with the Play Store search and other app search engines, and the advantages of App Finder.

Detailed comparison of search results from the Play Store and from App Finder

The problems with the country-specific ratings on Google Play and App Finder's solution

Detailed comparison of App Finder with other tools for finding Android apps and games

A comprehensive comparative review of advanced calculator apps was done with the help of App Finder: Short version / Long version.

The searches are explained in detail. The principles apply for all kinds of apps, like file managers, music players, and also games.