FolderMount

If you frequently find yourself running out of storage space on your device's internal SD card, FolderMount offers a practical solution. Specifically targeting the issue of space constraints on internal memory, it creates links between folders on the internal SD card and their equivalents on a larger, external SD card.

Users can seamlessly transfer content such as game data, multimedia files, and offline navigation maps typically stored by default on the limited internal storage, to an external SD card, thereby freeing up valuable space. The linking process means your internal storage folders will display content that's actually located on the external SD card, optimizing storage management and allowing for multiple large applications to coexist without the need to uninstall them.

The app is straightforward in design, featuring a Holo theme and an intuitive graphical user interface. It supports a range of Android versions from 2.3 to 6.0 and routinely checks the SD card's mount status to ensure it remains functional.

While the basic version allows for the creation of up to three mount pairs, upgrading to the "pro" version unlocks additional capabilities and removes certain constraints. Among these limitations in the free version are the restrictions on the type and path of the source folder, and the inability to list folder sizes using the built-in file explorer.

To utilize this tool, ROOT access is indispensable. Without it, the functionality will not initiate. Users should also be aware that while the application facilitates file management, by enabling links between internal and external storage, it doesn't guarantee performance and should be used with discretion.

FolderMount stands out among similar tools by providing support for newer Android versions and a user-friendly interface, thus enhancing your device management experience.