Popup Ad Detector and Blocker is a free utility application designed specifically for Android users to tackle the annoyance of pop-up ads. This tool efficiently identifies the application responsible for displaying ads by monitoring the most recently active app at the moment an ad appears. Users can easily pinpoint which app is causing interruptions, enabling them to take action accordingly.

In addition to its tracking capabilities, the app features a widget that visually represents the logo of the application currently running when an ad is displayed. This allows for quick identification and decision-making. It is important to note that while this application assists in locating problematic apps, it does not have the functionality to automatically block or remove pop-up ads.