Proto.io

Proto.io is a versatile prototyping tool that allows you to design interactive prototypes for web and mobile applications. It supports both low and high-fidelity designs with a user-friendly drag-and-drop interface.

Key Features

• Drag-and-drop interface for easy design.
• Supports web, iOS, and Android prototypes.
• Real-time collaboration with team members.
• Built-in user testing features.
• Customizable templates and UI components.
• Integration with popular design tools.

Pros

• Intuitive interface for quick prototyping.
• Freemium pricing model for diverse needs.
• Responsive designs across devices.
• Strong community and support resources.

Cons

• Limited features in the free version.
• Export options can be restrictive.
• Some performance issues with complex prototypes.
• Learning curve for advanced features.