Today’s free resource App Screen Presentation Mockups comes from UIfest.Showcasing your app design beautifully might be essential in order to gain attention.App Screen Presentation Mockups is a set of presentation mockups.you can use these fully-editable PSDs templates to showcase your app screens or interface design. You can easily change the background color.They are all designed using smart objects which means you can easily change the screens by double clicking the smart object layer and Put your designs.That’s all!!