What is the file explorer app you use in your Android smartphone? The stock is usually primitive, and the famous ES Explorer has gone complicated.
My choice is File Manager +, which has a simple, straightforward, easy to use GUI, yet packed with some great features.
There are quite a number of apps in Google Play Store named as File Manager, look for the icon above to locate the right one.
In a simple screen, this app shows you the available and used storage space in your phone's main storage, and external SD card, if any. It also categorizes the files stored in your phone into Images, Music, Videos, Documents, Apps, etc. for easy navigation and access.
It also has a Storage Analysis function to examine the storage occupying percentage analysis, and list out the large files that have taken up a lot of storage space.
The good news is, this app of high usability with neat and clean user interface, is free for download and use, and it doesn't contain any ads too.