IOS, native
Firebase + Java and Google Cloud, for the backend
Database, Firebase Realtime DB, as a NOSQL solution (works better than Firestore for me) and actually build a simple RCP service on top of it.
My next backend might be on Go and just use a simple Rest service, and minimize Firebase usage (it is still good for real time chat type of apps).
My next backend might be on Go and just use a simple Rest service, and minimize Firebase usage (it is still good for real time chat type of apps).