Could you please describe your use case in more details? Are you building a hybrid mobile app with Cordova or you wish to build a native iOS app? This would help us provide better support on how to get the most of the Telerik Platform offering.
Community forums might be a better source for information on how to resolve the mobile Safari's issues with accessing the resources on the file system in iOS (which might be the reason why upload through Safari does not work in iOS).
Check out the new Telerik Platform - the only modular platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native apps. Register for the free online keynote and webinar to learn more about the Platform on Wednesday, February 12, 2014 at 11:00 a.m. ET (8:00 a.m. PT).