Will not go. Firebase is more for the centralized distribution of messages to different clients.
And then every customer is your repository, and accordingly, each requires sufficient space (at least 1Gb).
Well, plus need some kind of transparent system of "registration" using this API DBaaS (if I correctly understand the terminology).
Something similar seemed to have OpenDrive
, in any case, the API for the "seamless check in" there. But there are other limitations that I don't know. how to get around. It's not DBaaS, and of course, to build a sync problem there - not to download each time the horse amounts of information.