In general, you should install apps outside of your phone's app store only if you have a very good reason to.

Selecting this option will allow you to install apps outside of the Google Play store. Depending on your device, you can also choose to be warned before installing harmful apps.

Linux has many ways to install applications, including Personal Package Archives in Debian and Ubuntu-based distributions. Here's how they work.

Jack Wallen demonstrates how to install software from the command line on Ubuntu, AlmaLinux, Arch Linux, and openSUSE.

That means it's time to start installing those apps! My current favorites—for those of you new to third-party iPhone or iPod touch apps—include: iFlix, and incredible Netflix account ...

How to Install Unsigned Android App. Every Android application available in the Android Market has been signed by the developer with a digital certificate.

Apple’s macOS 15.1 Sequoia now lets you install and use applications acquired from the Mac App Store directly onto an external drive.

With the last two releases of Windows, Microsoft has finally opened its own app store. Here's how to install apps in Windows 8.1 and Windows 8.

The Amazon Alexa app works with Windows 11 and 10 PCs and tablets to bring you the power of Alexa, now at your fingertips.