FluidUI - Build Mobile and Web Prototypes

Fluid UI is a web-based tool designed for creating interactive wireframes, mockups, and prototypes for web and mobile applications.

Features

• Rapid Prototyping: Quickly design prototypes using over 2,000 built-in components from Material Design, iOS, Windows, and Wireframe libraries. 
• Interactivity: Add mouse and touch gestures, along with animations like pop-in, fade-in, and flip, to enhance user experience. 
• Collaboration: Enable real-time collaboration with team members, including live video calls and instant updates.
• Mobile Testing: Preview prototypes on mobile devices using Fluid UI's Android and iOS apps.
• Cloud Access: Access projects from any device with an internet connection, ensuring seamless workflow. 

Pros

• User-Friendly Interface: Intuitive design suitable for both beginners and professionals. 
• Comprehensive Libraries: Extensive collection of pre-built components accelerates the design process.
• Effective Collaboration: Real-time updates and communication tools enhance teamwork efficiency.
• Cross-Platform Compatibility: Works seamlessly across browsers and devices.

Cons

• Limited Free Features: Some advanced features and libraries are restricted to paid plans.
• High-Fidelity Prototyping: May not be ideal for creating highly detailed prototypes.

Free Plan Details

The free plan includes:

• Projects: One active project with a maximum of ten pages.
• Libraries: Access to Mobile and Desktop Wireframe, and Mobile (iOS 6 and Android 2) libraries.
• Uploads: Not available; image uploads are restricted to paid accounts.
• Collaboration: Unlimited reviewers can view and comment on prototypes.