Placeit - Generate realistic product shots in seconds
iOS Jetpack - Beautiful easy-to-use screenshot templates for App Store
Mediamodifier - Create beautiful designs and product mockups in seconds.
AppLaunchpad - Create free beautiful screenshots for App store/Google play
Magic Mockups - Place your product screenshot in real-life environment.Free iMac and iPad mockups ... read more.
App Screenshot Maker - Design marketing screenshots for your app in minutes