Easier web and mobile
app prototyping

For people who care about products

Design or upload screens, add animated interactions and get signoff from stakeholders

Design using our built in Android, iOS or wireframing libraries or import your own screens.

Coordinate your team's ideas using wireframes, screenflows, comments and user testing

Create alignment and shared understanding between everyone involved in your project.

Reduce project delivery costs by 60% and deliver them 30% faster with better requirements capture

A prototype is worth a thousand pictures. And don't even start us on unread specification documents!

Complete market research and user testing without writing a single line of code

Easily create and test prototypes for web, Android or iOS protoypes. Once you are satisfied, talk to us about high fidelity design and development.

Improved architecture. Less rework. Better code. Rapidly.

Projects that start with code end with failure. Fluid UI defines the 'what' before the 'how'. Your UI and your users will thank you.

Prototype web, desktop and mobile apps - easily

  • Select from 16 built in libraries for Android, iOS, web, desktop and more
  • Add interactions and animations to bring your prototype or wireframe to life.
  • Interact with your prototype immediately on desktop or on mobile using the Fluid UI apps.
"Check out @FluidUI for the best prototyping software I have ever used."
Ben Way
Entrepreneur and author, Silicon Valley

Collaborate with stakeholders and communicate your designs

  • Invite collaborators and stakeholders to review and comment on your prototypes
  • Fix design issues and create new versions long before your design enter development
  • Get feedback with live video calling and invite teammates into a collaborative design session
“No other tool matched our requirements like Fluid UI.”
Gregory Ek
Senior UX Manager Samsung Korea

Get invaluable user feedback without writing a single line of code

  • Improve the usability of your designs by adding a customer feedback phase before long needing a developer
  • Test mobile prototypes on your devices with the dedicated player apps
  • Create new versions and iterate designs quickly to test different options
"Why are you reading this when you could be designing your first app?”
Bryan M. Wolfe
Managing editor at AppAdvice

Read more about prototyping and design