About Fluid UI
Overview
Fluid UI is a prototyping tool for designing interactive web, mobile, and desktop prototypes in minutes. It targets designers, developers, product owners, and product visionaries who need to communicate product ideas clearly.
The service pairs a web-based editor with a desktop client and free mobile player apps, so prototypes can be opened anywhere. Sharing, feedback, and collaboration are built in from the first prototype.
Key Benefits
- Create and share a prototype in minutes using pre-built UI kits for Material Design, iOS, and wireframing.
- Share prototypes instantly to unlimited reviewers for built-in feedback.
- Collaborate in real time with the whole team editing the same prototype at once.
- Test prototypes on any mobile or tablet using free player apps.
- Prototype in high or low fidelity to match whatever style a project needs.
- Access work from the desktop app or any browser at any time.
How It Works
Sign up for a free lifetime account, then open the editor on desktop and place components from UI kits onto a canvas. Link screens visually to add interactions, invite reviewers and teammates, and share the running prototype within 15 minutes.
Use Cases
- Designers prototype high- or low-fidelity product screens and present interactive previews to stakeholders.
- Product owners communicate their product vision by sharing clickable prototypes for quick feedback.
- Developers validate UX flows and interactions before writing code.
- Teams use real-time collaboration on Team accounts to build one prototype together.
- Reviewers test prototypes on their own mobile and tablet devices with the free player apps.
- Solo users exploring a future product start with 5 active projects on the Solo plan.
Why Choose This Product
Fluid UI starts with a free lifetime account and focuses on fast, easy prototype creation with pre-built kits. Paid plans add export, print, and comments, and every paid plan carries a 30-day money-back guarantee.
Fluid UI Pros & Cons
- Free lifetime account available with no time limit
- Free player apps let anyone test prototypes on mobile and tablet devices
- Real-time collaboration on Team plans
- Pre-built UI kits for Material Design, iOS, and wireframing
- 30-day money-back guarantee on paid plans
- Solo plan caps active projects at 5; Pro caps at 10
- Mobile apps preview prototypes only — prototyping starts on the desktop
Key Features
UI kits
All plansPre-built UI kits cover Material Design, iOS, and wireframing styles.
Real-time collaboration
TeamThe entire team works on the same prototype at the same time.
Interactive previews
Visually linking screens together makes adding interactions fast and productive.
High/low fidelity
Prototypes can be built in high or low fidelity to suit any project stage.
Access anywhere
Prototypes open in the desktop app or through a browser at any time.
Mobile testing
Free player apps let testers run prototypes on any mobile or tablet.
Export and print
Pro+Pro and Team plans let users export and print projects, and reviewers can add comments.
15-minute prototyping
A new user can create and share a prototype within 15 minutes of signing up.
Fluid UI Pricing
View full pricing →- 5 active projects
- 1 user license
- Unlimited reviewers
- All libraries, unlimited uploads, reviewing and on-device testing with the player app
- 10 projects
- 1 user license
- Unlimited reviewers
- Export, print and comment
- Unlimited projects
- 5 users including you
- Unlimited reviewers
- Export, print and comment
- Real time team collaboration
| Feature | Free Free | Solo $8.25/mo | Pro $19.08/mo | Team $41.58/mo |
|---|---|---|---|---|
| UI kits | ||||
| Real-time collaboration | ||||
| Export and print |
Pricing extracted from the product website and may change. Check the source for current details.
Frequently asked questions about Fluid UI
How do I upgrade?
You upgrade directly in the editor by clicking the blue "Upgrade now" button in the top right menu.
What cards do you accept?
Fluid UI accepts Visa, MasterCard, and American Express payments in the editor.
Can I use PayPal or direct transfer?
Yes. Annual or team licenses can be processed by PayPal or direct transfer — contact Fluid UI with your needs.
How long must I sign up for?
You can pay on a monthly or annual basis. There is no contract and you can pause your billing at any time.
When do I get billed?
You get billed when you sign up and then every month or year depending on your account type.
Can I switch between account types?
Yes, you can switch between account types whenever you need to.
How Fluid UI compares
Fluid UIThis | ||||
|---|---|---|---|---|
| Starting price | Free | Free | Free | Free |
| Pricing model | Freemium | Freemium | Freemium | Freemium |
| Platforms | Web, iOS, Android | Web | Web | macOS, Windows, Linux |
| Top features |
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| Rating | — | — | — | — |
