eCrisper is created specifically for Mac using the Cocoa frameworks, the same way Mac OS X itself is created. Much of Cocoa is implemented in Objective-C, an object-oriented language that is compiled to run at incredible speed.
The actual set of tools used is the Xcode developer tools package.
How can eCrisper display web content including HTML5? It uses WebKit, the world’s most advanced web browser engine. WebKit is a Cocoa framework so software developers can easily integrate web browsing into their applications.