All Services Programming & Development Mobile Application Developer $10/hr · Starting at $25 Hi I am Charles Carlo Sio a freelance mobile app developer and I will help in developing all your app ideas. About $10/hr · Ongoing Download Resume Hi I am Charles Carlo Sio a freelance mobile app developer and I will help in developing all your app ideas. Skills & Expertise AndroidApp DevelopmentHelp DeskIdeationiOSMobile DevelopmentSoftware Development 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts Help Desk ServicesIdeation ManagersWeb Application DevelopersSoftware DevelopersMobile App Developers