The iOS platform developed by Apple is the world's most advanced mobile operating system, continually redefining what people can do with a mobile device. Tizen platform developed by Samsung is an open source smart phone platform, which is created for wide range of device. Due to the use of different smart phone platforms, mobile contents developers must create content designed specifically for each platform or use a conversion process to provide game content to consumers. In this paper, to resolve this problem, the iOS-to-Tizen smart game converter was designed to automatically translate game contents from the iOS platform to the Tizen platform for smart phones. Through the iOS-to-Tizen converter, resources such as images and sounds can be converted, APIs can be converted using a platform mapping engine. These and all other content conversion functions were examined. Test results indicate that the graphics, image, sound, and other functions of converted Tizen games were equivalent to those of the iOS games before conversion.