Very important: these devices do not have Google services.
In order to install apps on X-Security Android monitors, you must have a formatted microSD card.
First, download the .apk file of the app you want to install. This file is copied to the microSD card and inserted into the monitor's microSD slot on the back of the device.
Once this process is done, go to the main screen, slide it to the left to display the file folder and enter it. On the left side you will find a drop-down menu. Click on it and choose the SD card option.
After that, you must install the .apk file of the app you want to have on the device.
Once the process is finished, we must check that it appears on the main screen and test the operation.