All Services Programming & Development mac os developer $20/hr · Starting at $1K 8 years of expereince on upwork. Multitple applications similar to Dropbox, Cloudapp................ About $20/hr · Ongoing Download Resume 8 years of expereince on upwork. Multitple applications similar to Dropbox, Cloudapp................ Skills & Expertise App DevelopmentDropboxMac OSMacintoshObjective-CSoftware Development 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts Web Application DevelopersSoftware DevelopersObjective-C DevelopersMac OS DevelopersAPI DevelopersiPhone App Developers