ExtractionUI is a free Android app developed by soulextract, which falls under the category of Business and Productivity. The app provides users with a way to set up and customize UI sounds for their device. Before using the app, users need to install KLWP Pro and Nova Launcher (free version) and set up three empty screens in their launcher, selecting three screens in KLWP Editor.

The app also requires Tasker, which can be installed from the Play Store, and users need to download a UI sounds zip file from the provided link and extract it to "/sdcard/Android/media/". After moving all the *.xml files to "/sdcard/Tasker/tasks/" (creating the directory if it does not exist), users can open Tasker and import all xml files.

Overall, ExtractionUI is a useful app for those who want to customize their device's UI sounds. However, it requires several prerequisites and may not be suitable for everyone.