Firebase Backend as a Service Firebase is a Baas owned and operated by Google and aids in developing and growing Custom Mobile Application Development. It was first developed as an YC11 start-up and later on evolved as the next generation of Google’s mobile app development platform in a concise span of time. Firebase Backend as a Service is becoming a very popular option cause of various factors, and presently most of The Mobile App Development Companies are choosing Firebase Baas for all their future projects.