A free app for Android, by Magic Studio INC.

Cleaner Phone: clean ram junk cleaner booster is an application that helps you clean the RAM memory of your device, thus making your phone faster and more efficient. By removing all the residual files, it will also help you to free up the memory space for more applications.

The junk files that are left behind by uninstalled apps can take up a lot of memory space. This can be a big problem, especially if you have a low-end device with a small amount of memory. In such a case, the only option is to uninstall the unused apps, which is a very tedious process.