ForeUI is described as 'EaSynth ForeUI is an easy-to-use UI prototyping tool. You can use ForeUI to create skinnable prototype of software or website, and run the interactive simulation in your web browser. You can switch the UI theme of the prototype, thus the fidelity will be changed as well' and is an app in the Development category. There are more than 25 alternatives to ForeUI for a variety of platforms, including Online / Web-based, Windows, Mac, Linux and iPhone. The best alternative is Pencil Project, which is both free and Open Source. Other great apps like ForeUI are Lucidchart (Freemium), Balsamiq Wireframes (Paid), Marvel (Freemium) and Moqups (Freemium).
Lucidchart is a visual workspace that combines diagramming, collaboration, and data visualization to accelerate understanding and drive innovation. With this intuitive, cloud-based solution, everyone can work visually and collaborate in real time.
Mockup Designer, built with Backbone, Backbone-LocalStorage and Html2Canvas, is a super-easy-to-use mockup tool that uses the local storage of your browser as its backend. However the data layer is loosely coupled, so you can integrate with any RESTful API or any Backend service.
Nothing to download/install, create and access your mockups from anywhere. Add pages with templates and define links to present a clickable prototype. Our components are of medium-fidelity not very sketchy or look too real. Its just right.