Kitkat alert. Android OS version kitkat since occurred. For external SdCard such as copying and deleting. Trying to solve it, but seems to take a long time. Temporarily, File Explorer menu at the top button to set the connection. Accessible path to the subdirectory of SdCard. For this area, the file copy, delete, etc. Are supported.
Get the .apk installer of Smart File Manager 3.5.5 that is completely free and have a look at users' reviews on Droid Informer. This application setup package requires 5 MB to be successfully installed. The app is built for Android 4.0.3 and above. This application has been scanned for viruses and it has been found completely secure. SmartWho is the developer of the tool which is included in the Productivity category.
The most recent release was on Apr 23, 2019 and Smart File Manager was downloaded and set up by over 1M users. The overall user rating of the app is 4.4. Ads are a part of this application.
The statistics show that the tool is popular mostly among Samsung and Asus users.
As users mention, you can find a nice clean interface, perfect performance and quite a few bugs among the pluses of Smart File Manager. From the users' point of view, there are several disadvantages, they are just too many ads and a battery drain.
Permissions