Justinmind

General Description: Justinmind is a prototyping tool for UI/UX designers and developers who want to create wireframes and fully interactive prototypes. It simplifies the process of building realistic prototypes to test user interactions and flows.

Key Features:

• Drag-and-drop interface for wireframing
• Interactive prototyping with animations and transitions
• Integration with Sketch, Photoshop, and other design tools
• Usability testing and feedback collection tools

Cost: Justinmind offers a free plan for basic prototyping. Paid plans start at $19 per user per month, with advanced features for interactive design and team collaboration.