We learned the basics of the four main AR SDKs made available to us from many companies. We installed and compiled a working example in each one of the SDKs with minimal effort, and we can now move on to utilizing these SDKs to their full potential, as they currently stand in their respective stages of development.
We can see that all four SDKs are simple enough to use and are relatively easy to install. In my opinion, the best SDK to use at the moment is Vuforia. It has the most robust API and is extremely well-documented for usage and further learning.
In the next chapter, we will focus on learning the history of GIS and how that history has shaped the way we use GIS in AR applications and games today.