Hi There,
I have read your post and come to know that you would like to get build an application with the mentioned features. Data will be stored in firebase. All the mentioned features are pretty much clear for me. I would like to invite you for Personal Message Chat where we can clear out the scope in more detail.
We Believe In order to achieve your goal or Scope, We have a bunch of skillset like Native(Android & iOS), PHP(Including all Major Frameworks), Dotnet, Node JS, Angular JS, React JS, DB(MySQL, Realm, FirebaseDB, MongoDB, Oracle), Different third-party SDKs and APIs.
We are a team of highly experienced(>2 Years) People which covering the area of Designing, Development, Backend & APIs, and QA.
As Quality is the prior matter for all, we have standardized our pattern and flow to maintain this which can strongly touch your expectations.
I hope you at least see the capability in us through this proposal, rest will be handled by our team with committing to provide one world-class output.
Thanks
Pinal
TBI