All Services Programming & Development Windows Store Apps $5/hr · Starting at $1K C#, C++, JSON, XML, maps services, social network api (facebook, twitter, vk.com, foursquare), in-app purchase About $5/hr · Ongoing Download Resume C#, C++, JSON, XML, maps services, social network api (facebook, twitter, vk.com, foursquare), in-app purchase Skills & Expertise APICC#C++cnmFacebookFoursquareJSONTwitterWindowsWindows 8Windows Phone 7Windows Phone 8XML 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts C++ DevelopersXML DevelopersC# ProgrammersWindows 8 DevelopersJSON DevelopersTwitter ExpertsC Programmers