Best Principle Alternatives & Competitors in 2025

ProtoPie is the easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT.

Key ProtoPie features:

Free Trial Easy to Set-up and use Integrations

paid Free Trial $13.0 / Monthly

Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more. .

Key Adobe XD features:

User Interface Integration with Adobe Ecosystem Prototyping and Animation Collaboration Tools

RealityMAX is the AI-powered 3D design collaboration platform, 100% online. Cooperate remotely with your colleagues on 3D projects and easily share your work with clients. Create Web3D and AR experiences in a snap, without a line of code.

Key RealityMAX features:

AI image enhancer Upload multiple 3D models Edit 3D model materials Change 3D model texture

Visit website freemium $40.0 / Monthly (Pro with up to 500 GB of storage space)

Design is really about solving problems. UXPin is the UX Design Platform that gets that right.

Key UXpin features:

Collaborative Design Usability Testing Rich Interactive Prototypes Design Libraries

The most powerful way to plan, prototype and hand off to developers, all without code. Download a free trial and see why professionals choose Axure RP 9.

Key Axure features:

Advanced Prototyping Capabilities Collaboration Features Integrations Extensive Documentation and Training Resources

Team-based interface design, Figma lets you collaborate on designs in real time.

Key Figma features:

Real-time Collaboration Cloud-Based Cross-Platform Prototyping and Design in One Tool

A super easy wireframing tool with all the other tools you need in the product design process.

Key MockFlow features:

Ease of Use Collaboration Features Templates and Components Integration with Other Tools

freemium $14.0 / Monthly (1 Editor)

Design interactive UI prototypes for modern interfaces.

Key Origami Studio features:

Native Components Free to Use Comprehensive Animation Tools Integration with Other Tools

The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project.

Key Moqups features:

Ease of Use Collaboration Features Flexibility Integrations

Balsamiq. Rapid, effective and fun wireframing software.

Key Balsamiq features:

User-Friendly Interface Rapid Prototyping Low-Fidelity Focus Collaboration Features

Mockplus is a desktop-based prototyping tool.

Key Mockplus features:

Ease of Use Speed Collaboration Rich Component Library

HTML5 all-in-one mockup & prototyping tool that exports completed interfaces to working HTML + Javascript.

Key UX-App features:

Visual Editor Interactive Prototypes Real-time Collaboration Integration Capabilities

Wireframing and prototyping with webbased HotGloo. Create interactive, responsive wireframes for web and mobile. Includes 15-day free trial!

Key HotGloo features:

User-Friendly Interface Real-Time Collaboration Extensive Widget Library Cross-Platform Compatibility

Prototyping and collaboration for design teams.

Key Invision features:

Collaborative Features Prototyping Integrations User Testing