APK Extraction, also known as APK Extractor or APK Manager, is a free Android utility tool developed by KoreaAppStory. This app allows users to extract installed apps on their phone as APK files that can be saved and shared with others. The extracted APK files are saved in the SD card with a default address of /sdcard/AppStoryExtractor.

One of the best things about this app is that it does not require root authorization, making it easier and more accessible to use. Additionally, the process of extracting the APK files is fast and straightforward, making it a convenient tool for those who want to share apps with others or keep a backup of their installed apps.

Overall, APK Extraction is a useful and efficient app for anyone who wants to extract their installed apps as APK files without the need for root authorization. It is fast, easy to use, and a great addition to any Android user's toolkit.