Xamarin - Create iOS, Android and Mac apps in C#
Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy
Xcode - Xcode is 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.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
FEELingK - FLK wireless internet messaging solutions.
Postman - The Collaboration Platform for API Development