The app works by using Safari View Controller to open a second webpage via Split View. To activate Sidefari, all a user has to do is open the Slide Over app picker and choose Sidefari. The app also works in multiple sizes, allowing users to use Sidefari to take up either half the screen or smaller. Sidefari is only available for the iPad Air 2, iPad mini 4 and iPad Pro as they are the only devices that support multitasking.
Sidefari for iPad is available in the App Store for $0.99. [Direct Link]