1. A method of supporting application development using a cloud service, the method comprising: accessing an integrated system providing a cloud service; selecting a developing environment corresponding to a development-target application through a template provided by the integrated system; creating a created application based on the developing environment; constructing a driving environment, in which the created application operates, using an object image provided by the integrated system, the object image being rendered with regard to at least one device where the created application is driven; verifying the created application through the object image to determine the created application is properly operated in the constructed driving environment; transmitting a result of the verifying to a verifier; uploading and publishing the created application to a market in accordance with results of the verifying; and providing an operating system, which manages a registered application in a form of the template.