This app "Files To SD Card" is used to quickly move copy or backup files from internal memory to your phone's SD card. With this program you can clean up with one click your device internal memory or backup your files to the SD card.

Quickly move your photos videos or download from your device to an SD card. The program is especially useful for devices with a small internal memory capacity that does not allow the phone to store the captured content directly on an SD card or for users who want to quickly and easily backup files to an SD card.

Also suitable for Android Go.

Recommended devices:
Vodafone Smart Prime 6 Lenovo A2010 LTE Moto G Samsung Galaxy Core Prime VE Sony Xperia M4 Nokia One ..

With this program you can quickly free up the internal memory of your phone or backup your files to the SD card.
 
The first time you use it and every time you restart the device you need to set access rights to the SD card.