Gliffy is a leading provider of online diagramming tools for enabling visually impactful, collaborative communications. Along with Gliffy Online, other products include fully featured, tightly integrated plug-ins for Atlassian’s Confluence and JIRA. Gliffy offers a powerful, cost-effective alternative to Visio, featuring an intuitive drag-and-drop interface that combines the power of traditional desktop software with the lightweight, low learning curve and flexible features of today’s most popular browser-based applications. Founded in 2005 and headquartered in San Francisco, California, Gliffy is self-funded and privately held.
HotGloo is a kick-ass wireframe UX prototyping tool. With its focus on interaction and collaboration, HotGloo stands out from many other tools available. With HotGloo, it doesn't matter if the project is a small website or a huge web project. Whether you are a designer, developer or project manager working in a start-up or a Fortune 500, HotGloo will help you wireframe your next web project.
Marvel App is a super simple design, prototyping, and collaboration platform for web, iOS, and Android, with over 1 million users. Their simple editor allows you to link all your designs together in a jiffy, then add gestures and transitions to make your prototype feel just like a real app or website. Create prototypes for the iPhone, iPad, Desktop, Apple TV, Apple Watch, and Android.