Installation of an App on smartphone

App automatic installation
There are paid apps and free apps.
In any case, to avoid any risks, you only have to install App downloaded directly from the official authorized Store, specified in your phone.


In this way you get two advantages:
The offered Apps are all compatible with your operating system.
The App provided in the Store are guaranteed free of viruses.

Manual installation App
In very special cases, for example to install a specific App of which you are sure of the provenance and quality, you can deactivate the security system.
Enter the Settings, under Security you should find the item Unknown Sources, disable the option.
Remember to reactivate again the security after the App installation.

The files to be installed manually are named as follows.
Android = .apk, macOS = .app, Windows = .exe