Typically, mobile applications require a web backend. Otherwise, all the data created in the application stays in the device itself. The web backend opens the door from a device into a more common place: the Internet. If the end user removes and installs the application over time, the data may restore. If the end user installs the application on another device, the data may also restore. These are features that accelerate user experience.

In this chapter, we created a web backend and Xamarin.Forms project. The web backend project handles server-side behaviors and the Xamarin.Forms project is working on all three platforms' devices.

During the development phase, we learned how to compose and style Xamarin.Forms pages and how to communicate with the web end.

In the next chapter, we'll test and optimize Xamarin.Forms projects.