Fluid UI
Browser-based tool for rapidly creating and testing interactive prototypes of web and mobile apps
- Also known as
- fluid-ui
Available worldwide
What is Fluid UI?
A collaborative prototyping platform where designers and product teams can quickly build interactive wireframes and high-fidelity prototypes using pre-built UI component libraries, test on mobile devices, and iterate with real-time team collaboration and built-in feedback tools.
Fluid UI pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
From $8.25/month or $99/year. Free tier with up to 5 projects.
Free
FreeExplore ideas with core prototyping features
- users
- 1
- reviewers
- unlimited
- active_projects
- 5
- all libraries
- unlimited uploads
- reviewing
- on-device testing with player app
Solo
For those regularly creating prototypes to share
- users
- 1
- active_projects
- 5
- all libraries
- unlimited uploads
- reviewing
- on-device testing
Pro
Add export, print, and commenting capabilities
- projects
- 10
- export
- reviewer comments
Team
Full team access with unlimited users and real-time collaboration
- users
- unlimited
- projects
- unlimited
- real-time team collaboration
- all features
- unlimited projects
- unlimited users
What Fluid UI does
The capabilities that matter for wireframing, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Architecture model
- Managed cloud saas browser
- Enforced low fidelity sketch rendering aesthetic
- ✗
- Pre built ios android web UI component library
- ✓
- AI generation from text prompts or napkin sketches
- ✗
- Drag and drop click through user flow linking
- ✓
- Real time multiplayer crdt cursor sync
- ✓
- Confluence and jira native iframe embedding
- ✗
- Export to high fidelity tools figma sketch
- ✗
- Click heatmap and basic usability testing integration
- ✗
- Offline editing mode
- ✗
- SOC2 type ii
- ✗
- ISO 27001
- ✗
- Pricing model
- Freemium project limit
Platform & deployment
Independently observed- iOS
- Web
- Android
- Cloud / SaaS
Fluid UI alternatives
Other wireframing we track, ranked by the same independent score.
- Wireframe.ccBrowser-based tool for sketching website and application layouts with clickable prototypeslow · 29%
- Quant-UXLow-code platform for prototyping and testing UX designs with real user feedbacklow · 29%
- MockFlowA collaborative online whiteboarding and wireframing platform that lets teams create, iterate, and export UI designs to production.medium · 55%
- NinjamockOnline collaborative wireframe and mockup design tool for rapid prototypinglow · 37%
- JustinmindA tool for designing and prototyping interactive web and mobile applications without codingmedium · 56%
- MoqupsBrowser-based design tool for creating wireframes, mockups, and interactive prototypes with real-time team collaborationlow · 36%
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Fluid UI, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Pricing transparency | 100 | 0.08 | 8.4 | ✓ |
| Price level | 80 | 0.05 | 4.2 | ✓ |
| Capabilities | 58 | 0.05 | 2.8 | ✓ |
| Reliability | 0 | 0.07 | 0.0 | - |
| Integrations | 0 | 0.04 | 0.0 | ✓ |
| Security posture | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Iso 27001: No · Soc2 type ii: No · Pricing model: freemium_project_limit · Architecture model: managed_cloud_saas_browser · Offline editing mode: No · Real time multiplayer crdt cursor sync: Yes | mediumsource · 2026-08-31 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 0 | mediumsource · 2026-08-31 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | HqCountry: IE · PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-31 · 75% |