Even though we can download apps from other sources, that is not advisable as it can lead to security risks. In the case of Smartphones, you are basically limited to downloading apps from the authorized store which is the Google Play Store for Android devices, and the App Store for Apple devices. But when it comes to installing programs on modern computers there are several ways of doing so.
Installing new programs and games is something quite common among PC and mobile users and that is the only way, you can make your computer or mobile device work exactly the way you want.
