Navigate to Settings
Tap on Security
Tap or Slide the button next to “Unknown sources”
A pop-up may appear. Tap on Ok.
Once the “Unknown services” has been activated, navigate to the download link for the application in a web browser. Tap on the link. A small prompt similar to the one below should appear.
Tap on OK. The app will begin downloading. Once it has finished downloading, a notification will appear. Tap on that notification to begin the installation.
The following prompt will appear. Tap on INSTALL.
Once the app has finished installing, tap OPEN.