Many applications require a backend solution, allowing users to communicate with a server or with each other like in social apps, for example, and which application is not social today? You can also think of a business app, for example, one for logistic purposes.

Sure, we can write our own API, host it somewhere, and write some Android code to communicate with it, including querying, caching, and all other functionalities that our application needs to support. Unfortunately, developing all this could be a very time-consuming process, and since this is often the most valuable asset, there must be another way to do this.

The good news is that you do not have to do all these things yourself. There are a couple of ready-made mobile backend solutions available on the Internet, such as QuickBlox, Firebase, Google App Engine, and Parse to mention just a few of the most well-known ones.

Each of these solutions do particular things well; although, one solution will be more suitable than...