Moqups is a streamlined and intuitive web app that helps you create and collaborate on wireframes, mockups, diagrams and prototypes for any type of project.
License: Freemium
MockFlow is ideal for users focusing on wireframing and mobile-friendly designs with a simpler interface, while Moqups excels in UI design and prototyping with advanced collaboration and feedback features. The choice between the two largely depends on the user's specific needs and expertise level.