Phone Optimizer (PO) is a free file browser for Android devices that provides fast and multiple functions. The user interface on the homepage is simple and easy to use. With PO, users can classify and browse files and search for them according to the directory structure.

One of the standout features of PO is the ability to manage external storage. This powerful function allows users to access, read, modify and delete files stored on their device's external storage. By granting this permission, users can easily browse, manage, and organize files on their device. It's important to note that the developers are committed to protecting users' personal information and keeping their data secure. They will never access, use, or share personal files for any other purpose.