The iPadian is not a complete emulator but simulates iOS interface on PC. Just install the iPadian and get started with Apps. The App has a very clean interface which looks fairly like an iPad. IPadian is one of the most popular emulators. You can test the App on different screen resolutions.
Smartface generally caters for professional App developers. Smartface makes it easy to develop for iOS and Android on Windows with a new perspective for developing applications on Cross-Platform technologies. The Smartface houses some of the most powerful features to test your App. Here are the Best iOS emulators for PC to run iPhone Apps and Games on Windows and Mac.