What is a difference between intel xdk, appmobi, and crosswalk?

Question

As far as I know they are all from intel, do the same thing, and yet do not mention each other at all.

So can someone clear some confusion, what and how they are differ

Answer 1

Appmobi used to make HTML5 cross-platform tools that was acquired by Intel about a year ago and it became the Intel XDK tool.

Intel XDK is a complete HTML5 cross platform development environment, it includes an editor, simulator, device testing solution and cross-platform app build service. Intel XDK supports building apps that uses Cordova APIs and it also supports other unique device APIs (intel.xdk JS bridge APIs)

Crosswalk is a portable runtime for HTML5, Javascript and CSS. Its an open source project from Intel. It is supported in Intel XDK to build Android app using Crosswalk runtime. This runtime has better HTML5 support than the runtime available by default with Android like WebGL and WebRTC... more information here.