MockupScreens is described as 'Create five screens in ten minutes without any programming knowledge or prior training!' and is an app in the Development category. There are more than 25 alternatives to MockupScreens for a variety of platforms, including Online / Web-based, Windows, Mac, Linux and Android. The best alternative is Pencil Project, which is both free and Open Source. Other great apps like MockupScreens are InVision (Freemium), Balsamiq Wireframes (Paid), Axure RP (Paid) and Marvel (Freemium).
MockupUI is a user interface mockup and wireframing software. It helps software designers and developers or any person with a software project to quickly turn ideas into visual mockups and produce design specification documents.