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by prpatel 5024 days ago
I'm not sure about RubyMotion, but I can speak to Titanium as we use it to build our TripLingo language learning apps.

Appcelerator Titanium does not compile down to anything - rather it bridges a JavaScript runtime to the native layer: either iOS or Android. It's not as fast as coding in ObjC or Android Java, but we see performance which is very close to that of native and have the entire underlying native SDK available for use.