This is a basic browser application with just the possibility to open url and search web or Wikipedia.
By limiting it to these basic feature the application is very small and faster than the built-in browser.
Also it allows you to use an optimization service to remove complex layouts from the pages which will result in faster loading and less scrolling. This can be very useful especially when you are in area with slow internet connection.
If you like the application, buy the full version. It's ad free and even smaller, thus faster in loading.