Ever heard about Google phones? The noise and hype about the camera? Typically, google uses existing sensors (Sony IMX series) in their camera phones, which some other phones use but matches it with outstanding software. Google has spent millions of dollars in the research and development of this software... And guess what? It works. The company has been able to produce great camera phones at less costs. That has also inspired other giants like Apple to pay more attention on their camera softwares.

Now this is where I'm going... Google couldn't keep it's "recipe for long. Google and many developers have ported this awesome software to other compatible phones both officially and unofficially. Although it doesn't work as exceptionally as it does on Google pixel phones for which it was originally designed, it does magic to any camera it is attached to.

Summary:- If your phone supports Gcam, you have a good camera phone already, and it is a must for you to get the app if you care about photography.