Media Rescan is a free Android app developed by RasenStudio under the category of Utilities & Tools. The app is designed to rescan your media files, including images, music, and videos, on your internal or external phone storage when they don't show up while exploring. The app is very lightweight and easy to use with a simple interface.

The main feature of Media Rescan is its ability to recover lost media files that don't appear in your phone's gallery or media apps. This can happen due to various reasons like a corrupted file system, sudden shutdown, or SD card errors. With Media Rescan, you can easily fix this issue by rescanning your media files and making them visible again. The app also provides a detailed log of the files that were scanned and recovered.

Overall, Media Rescan is a useful app for anyone who has lost their media files due to any reason. It's a simple and efficient solution to recover your lost media files without any hassle. The app is completely free and doesn't require any special permissions or root access.