Lunacy — free mobile app prototyping tool for you and your team

Lunacy provides a powerful mobile app prototyping tool, enabling designers to create stunning interfaces and collaborate efficiently with teams across various platforms.

prototype design in Lunacy

How to create mobile app prototypes with Lunacy

Step 1

Start a new project

Open Lunacy and create a new project. Set the mobile device canvas with the correct dimensions for your app prototype.

Step 2

Design low-fidelity wireframes

Use basic shapes and placeholders to sketch your app's layout. Focus on the flow and structure without detailed visuals at this stage.

Step 3

Refine to a high-fidelity prototype

Add colors, typography, and images to enhance your design. Use Lunacy's assets to create a polished, interactive prototype ready for user testing.

Simplify your design workflow with graphic assets and UI kits

Unlock the potential of mobile app design with Lunacy’s extensive library of graphic assets. With high-quality photos, illustrations, icons, fonts, and specialized UI kits, you can easily create both low-fidelity and high-fidelity prototypes, ensuring your design is both functional and visually appealing.

app prototype design in Lunacy

AI-powered mobile app prototyping tool for faster design

Enhance your mobile app prototyping with Lunacy's AI tools. Use the image upscaler to refine graphics for any screen size and the background remover to create sleek user interfaces. Generate placeholder texts seamlessly and design unique user avatars, streamlining your design process for better user experiences.

AI tools in Lunacy

Empower your team with advanced collaboration features

Lunacy simplifies collaboration for mobile app prototyping. Work in real time with your team, sharing immediate feedback through text and audio messages. Use stickers for quick reactions, ensuring everyone stays connected and engaged in the design workflow without missing a beat.

Collaboration in Lunacy

Enhance your workflow with our powerful features

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Online and offline modes

Enjoy the freedom to work with full functionality, online or offline—whenever you need Lunacy and wherever you are.

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One app, all systems

Lunacy is available on Windows, Mac, and Linux, offering a seamless design experience across all major operating systems.

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Popular design formats

With our app, you can open .sketch files directly and import files from Figma.

Frequently asked questions

What our users say

Join thousands of satisfied Lunacy users.
  • Lunacy is the Robin Hood of design tools, taking all the best features from Sketch and giving them to us Windows folks. It's like a revolution in the making.

    Eugene
  • Lunacy has been a fantastic tool for designing assets for my indie game. It’s easy to use, and I can quickly create the UI elements and graphics I need. Lunacy makes it simple to design professional-looking game assets without needing advanced skills.

    Destinee Ford