Firebase Alternatives

Android development environment based on IntelliJ IDEA

PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.

Xcode 4 is the new version of Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.

Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.

freemium $9.0 / Monthly (Plus usage-based costs. (Growth Plan). )

For devs, by devs. An easy way to build, host and manage Apps using the open source Parse Server. Scalable Servers, Pre-build examples, Cross-Platform support

Realtime application framework (Node.JS server)

Create iOS, Android and Mac apps in C#

SignalR is a server-side software system designed for writing scalable Internet applications, notably web servers.

Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.

Native apps, Mobile APIs, Real-time analytics, One Platform.

Adobe® AIR® runtime enables developers to package the same code into native apps for Windows and Mac OS desktops, iPhone, iPad, Kindle Fire, Nook Tablet & Android. Buy now.

Parse with five new products, live from F8

Self-hosted Firebase.