Xamarin - Create iOS, Android and Mac apps in C#
MockFlow - A super easy wireframing tool with all the other tools you need in the product design process
Kony - Kony is a mobile application application development platform that facilitates companies to deliver innovative mobile solutions.
Axure - The most powerful way to plan, prototype and hand off to developers, all without code. Download a free trial and see why professionals choose Axure RP 9.
Monaca - Monaca makes the hybrid mobile app development process with PhoneGap/Cordova simpler and...
UX-App - HTML5 all-in-one mockup & prototyping tool that exports completed interfaces to working HTML + Javascript