
Fluid UI - Detailed Review
Design Tools

Fluid UI - Product Overview
Fluid UI Overview
Fluid UI is a versatile and user-friendly prototyping and wireframing tool developed by Fluid Software, an Irish company founded in 2010. Here’s a brief overview of its primary function, target audience, and key features:Primary Function
Fluid UI is primarily used for creating and sharing professional-looking prototypes for web and mobile applications. It allows users to design mobile touch interfaces, wireframes, and mockups efficiently, facilitating the transition from concept to validation with built-in design tools and user testing capabilities.Target Audience
The tool is aimed at a diverse range of users, including entrepreneurs, product managers, startups, and designers (both UI and UX). It is also suitable for small to medium-sized enterprises (SMEs) and larger enterprises looking to streamline their prototyping and design processes.Key Features
Collaboration Tools
Fluid UI enables seamless collaboration among team members, clients, and other stakeholders, regardless of their locations or time zones. Users can arrange prototyping meetings, track team performance, and work on prototypes in real time.Drag & Drop Editor
The platform features a drag-and-drop editor that makes it easy to create prototypes by arranging pre-built widgets. This editor is user-friendly and requires minimal training.Component Library
Fluid UI offers a comprehensive component library with over 2,000 well-built components, including iOS, Windows, Material Design, and Wireframe libraries. Users can also upload and use their own custom components.Interactivity
The tool allows users to add interactivity to their prototypes with mouse and touch gestures, enabling the creation of interactive mobile and web prototypes.Feedback Management
Fluid UI includes an integrated review and feedback function, allowing designers and developers to invite others to evaluate prototypes, chat, and add annotations.Cloud Storage
All work is stored in the cloud, making it accessible anytime and anywhere. This ensures that any changes made to the prototype are automatically synced.Presentation Tools
Users can present their prototypes through live calls and interactive video sessions with clients, enhancing the collaboration and feedback process.Cross-Platform Compatibility
Fluid UI supports multiple platforms, including Android, iOS, and web, and can be accessed via web browsers like Chrome and Firefox, as well as through desktop and mobile apps. Overall, Fluid UI is a powerful tool that streamlines the prototyping process, enhances collaboration, and provides a range of features to help users create and test professional-looking prototypes efficiently.
Fluid UI - User Interface and Experience
Fluid UI Overview
Fluid UI is a browser-based wireframing and prototyping tool that offers a user-friendly and intuitive interface, making it accessible for designers of all skill levels.User Interface
The user interface of Fluid UI is characterized by its simplicity and ease of use. It employs a drag-and-drop WYSIWYG editor, allowing designers to quickly create prototypes by arranging pre-built widgets. The tool is built with the latest web technologies, including HTML5, CSS3, and JavaScript, and integrates open-source libraries like jQuery.Key Features
Component Libraries
Fluid UI provides over 2000 built-in components from various libraries such as Material Design, iOS, Windows, and Wireframe. This extensive library helps designers create prototypes quickly and efficiently.Interactive Prototypes
Designers can add animations and interactive gestures like taps, swipes, and clicks to their prototypes. The tool also supports different page animations, enhancing the prototype’s visual appeal.Linking System
The visual linking system, built with HTML5 canvas and CSS3, allows designers to link multiple pages and create a screen flow that shows how pages relate to each other.Collaboration Tools
Fluid UI enables real-time collaboration, allowing multiple users to work on prototypes simultaneously. It also supports video conferencing, live presentations, and the ability to add comments and annotations directly on the designs.Ease of Use
Fluid UI is praised for its ease of use. The interface is simple and accessible, requiring minimal training. Users can quickly set up and start prototyping without a steep learning curve. The tool is particularly noted for being easier to use compared to other similar tools like Figma.Overall User Experience
The overall user experience with Fluid UI is positive, with users appreciating its streamlined and usable design. Here are some key aspects:Real-Time Updates
All work is saved in the cloud, ensuring that changes are immediately available to the entire team. This facilitates seamless collaboration and feedback loops.Feedback and Review
The tool includes a reviewer mode where users can invite others to click through prototypes, chat, and add annotations. This feature enhances the feedback process and helps in incorporating feedback into the prototype before development begins.Customer Support
Fluid UI offers built-in chat support available 16 hours a day, ensuring that users get prompt assistance when needed.Conclusion
In summary, Fluid UI offers a user-friendly interface, extensive component libraries, and strong collaboration features, making it an effective tool for designers to create and share interactive prototypes efficiently. Its ease of use and real-time collaboration capabilities contribute to a positive overall user experience.
Fluid UI - Key Features and Functionality
The Fluid UI Design Tool
The Fluid UI design tool, often associated with the website https://www.fluidui.com, is a cloud-based software that helps users create web and mobile prototypes efficiently. Here are the main features and how they work:
Real-Time Collaboration
Fluid UI allows entire teams to collaborate in real-time on the same prototype. This feature enables multiple team members to work simultaneously, making the design process more efficient and streamlined. Team members can conduct video conferencing calls, perform real-time updates on designs, and add comments on design prototypes.
Pre-Built UI Kits
Fluid UI provides comprehensive pre-built UI kits that make material design, iOS design, and wireframing easier. These kits include hundreds of built-in widgets and icons, which can be used to create prototypes quickly. Users can also upload their own content from tools like Sketch or Photoshop.
Low and High Fidelity Prototypes
The tool allows users to create prototypes in both low and high fidelity. This flexibility is useful for different stages of the design process, from initial concept sketches to detailed, interactive prototypes.
Cross-Platform Access
Users can access their prototypes via a desktop app or by logging in through a browser. This flexibility ensures that designers can work on their projects from anywhere and on any device.
Interactive Prototyping
Fluid UI enables the addition of animations and interactive gestures such as taps, swipes, and clicks. Users can link multiple pages according to their requirements, creating a more realistic and interactive prototype.
Testing and Review
The tool allows users to test their prototypes on any mobile or tablet using free player apps. There is also a reviewer mode where users can invite others to click through the prototype, chat, and add annotations. This facilitates remote user testing and feedback collection.
Integration and Presentation
Fluid UI supports live presentations, allowing designers to share their designs with developers and stakeholders without leaving the platform. This feature enhances communication and ensures that all team members are on the same page.
Cloud Storage
All work is saved on the cloud, ensuring that designs are secure and accessible from anywhere. This cloud-based storage also facilitates real-time collaboration and version control.
AI Integration
While the primary features of Fluid UI do not heavily rely on AI, the tool’s efficiency and user-friendly interface can be seen as indirectly benefiting from broader design and collaboration best practices that AI-driven tools often promote. However, there is no explicit integration of AI within the core functionality of Fluid UI as described in the available resources.
Conclusion
In summary, Fluid UI is a powerful tool for creating web and mobile prototypes, focusing on collaboration, ease of use, and the ability to create interactive and realistic designs without explicit AI-driven features.

Fluid UI - Performance and Accuracy
Performance
Fluid UI, particularly in the context of the Fluid UI framework for Flutter, shows promising performance characteristics. Here are some key points:
Efficiency and Resource Usage
The implementation of Fluid UI in Flutter does not significantly impact performance. The use of MediaQuery.sizeOf(context)
instead of MediaQuery.of(context).size
helps in optimizing performance by only rebuilding the widget when the size is adjusted, not when other MediaQuery data changes.
Responsiveness
Fluid UI allows for infinite breakpoints, making it highly responsive and adaptable to various screen sizes without the need for multiple static breakpoints.
Practical Application
In real-world testing, such as on the author’s personal website, Fluid UI performed well even with Flutter for Web, which is not the optimal tool for such applications. This indicates that Fluid UI can handle different environments with minimal performance degradation.
Accuracy
The accuracy of Fluid UI can be assessed through its ability to maintain design integrity across different devices and screen sizes:
Design Consistency
Fluid UI ensures that designs are consistent and well-scaled across various screen resolutions. This is achieved through its flexible sizing and layout adjustments, which prevent issues like excess white space or poorly scaled content.
User Experience
By providing pre-designed UI components and an intuitive drag-and-drop interface, Fluid UI helps in creating interactive prototypes that accurately simulate the user experience. This is particularly useful for mobile app and web design projects where speed and simplicity are crucial.
Limitations and Areas for Improvement
While Fluid UI offers several benefits, there are some areas that require further attention:
Compatibility and Integration
Ensuring seamless integration with other design tools, such as Figma, is an ongoing process. For instance, leveraging Figma’s variable features to automatically adjust screen sizes and design elements could enhance the workflow.
Performance with Dynamic Content
There is a need to verify how Fluid UI performs with numerous widgets that change frequently based on fluid sizing. This could help in optimizing the framework for more dynamic and interactive applications.
Testing and Validation
Further testing is required to ensure that Fluid UI does not have a significant performance impact on apps that rarely change screen size. This includes verifying its impact on widget and golden tests to maintain high-quality user experiences.
In summary, Fluid UI demonstrates strong performance and accuracy in designing responsive and interactive user interfaces. However, there are areas for improvement, particularly in ensuring compatibility with other design tools and optimizing performance in dynamic content scenarios.

Fluid UI - Pricing and Plans
Plans and Pricing
Free Plan
Fluid UI does offer a free plan, although the details are not extensively outlined in the sources. However, it is mentioned that the free plan includes limited features, such as one project and unlimited reviewers.Solo Plan
Price: $8 per month (or $99 per year if billed annually).Features:
- 5 projects
- Unlimited pages
- Unlimited uploads
- Design interactive app prototypes
- Add gestures & animated transitions
- Share via web & mobile
- Access to all libraries, reviewing, and on-device testing with the player app.
Pro Plan
Price: $19 per month (or $229 per year if billed annually).Features:
- All features from the Solo plan
- 10 projects
- Interactive video presentations
- Export screens, screenflows, & HTML
- Comments and feedback from reviewers.
Team Plan
Price: $42 per month (or $499 per year if billed annually).Features:
- All features from the Pro plan
- Unlimited projects
- Add up to 4 extra teammates
- Collaborate on projects in real time.
Additional Information
- Free Trial: Fluid UI offers a free trial for users to test the features before committing to a plan.
- Billing: Users can choose to pay monthly or annually. If you cancel your billing, you will retain access to premium features for the remainder of the current billing period.

Fluid UI - Integration and Compatibility
Fluid UI Overview
Fluid UI is a versatile and user-friendly design tool that offers seamless integration and compatibility across various platforms and devices, making it an excellent choice for designers, developers, and product owners.Cross-Platform Compatibility
Fluid UI is compatible with both web browsers and desktop environments. You can use it smoothly in Firefox and Chrome, and for a more comprehensive experience, you can install the desktop client, which provides a native performance boost.Mobile and Tablet Compatibility
For mobile and tablet app design, Fluid UI offers native applications for both Android and iOS. This allows you to preview your prototypes directly on your mobile or tablet devices as you design, ensuring a realistic user experience.Real-Time Collaboration
Fluid UI supports real-time collaboration, enabling your entire team to work together on the same prototype simultaneously. This feature is accessible both through the web browser and the desktop client, ensuring everyone is on the same page regardless of their device.Cloud-Based Syncing
All your work on Fluid UI is saved in the cloud, which means any changes you make will sync automatically across all devices. This ensures that everyone on your team has access to the latest version of the prototype at all times.Component Libraries and Assets
Fluid UI comes with an extensive gallery of over 2000 built-in components from various libraries such as Material Design, iOS, Windows, and Wireframe. You can also upload your own graphic assets and save them to your personal libraries for future use. This flexibility makes it easy to integrate your design elements into the prototypes.Interactive Prototyping
The tool allows you to create interactive prototypes with taps, swipes, clicks, and other gestures using its simple linking system. You can also add animations and different page transitions to make your prototypes more engaging and realistic.Feedback and Review
Fluid UI facilitates feedback and review processes through features like Reviewer Mode, where you can invite others to click through your prototype, add annotations, and engage in live video presentations. This ensures that feedback is incorporated efficiently before development begins.Conclusion
In summary, Fluid UI integrates well with various platforms and devices, offering a seamless and collaborative design experience. Its compatibility with web browsers, desktop clients, and mobile apps makes it a versatile tool for designing and testing prototypes across different environments.
Fluid UI - Customer Support and Resources
Customer Support
Live Support
Fluid UI provides live support through a built-in chat system, where the team is available 16 hours a day to answer questions and assist users.
Training
Users can access training resources to help them get started and make the most out of the tool. This includes various tutorials and guides.
Additional Resources
Real-Time Collaboration Tools
Fluid UI allows multiple users to work on prototypes simultaneously, facilitating real-time collaboration and feedback. Users can discuss and implement ideas during video calls while prototyping.
Reviewer Mode
This feature enables users to invite others to review their prototypes, click through them, chat, and add annotations. This helps in incorporating feedback effectively before development begins.
Feedback and Commenting
Users can request, respond to, and resolve comments directly within the prototype, making it easier to integrate feedback into the design process.
User Testing
Fluid UI supports remote user testing sessions, allowing users to observe how others interact with their prototypes and gather feedback on the user experience.
Cloud Storage and Syncing
All work is saved in the cloud, ensuring it is immediately available to everyone in the team. The tool syncs automatically across different browsers and devices.
Mobile and Web Previews
Users can preview their prototypes on mobile devices using the Android or iOS apps, ensuring the design looks and functions as intended across different platforms.
These resources and support options are designed to help users create and refine their prototypes efficiently, ensuring a positive and productive user experience.

Fluid UI - Pros and Cons
Pros of Fluid UI
Fluid UI offers several significant advantages that make it a valuable tool for designers and teams involved in prototyping and design processes:Comprehensive Pre-Built UI Kits
Fluid UI provides extensive pre-built UI kits for material design, iOS, and wireframing, making the design process easier and more efficient.Real-Time Collaboration
The software allows entire teams to collaborate in real-time, enabling simultaneous work on the same prototype. This feature enhances teamwork and speeds up the design process.High and Low Fidelity Prototypes
Users can create both low and high fidelity prototypes, catering to different stages and needs of the design process.Multi-Platform Access
Fluid UI allows access to prototypes via desktop apps or web browsers, and users can test their prototypes on any mobile or tablet using free player apps.Interactive Elements and Animations
The software supports adding animations and interactive gestures such as taps, swipes, and clicks, and includes various page animations to enhance prototype design.Cloud Storage and Accessibility
Fluid UI stores work in the cloud, making it accessible anytime and anywhere. This feature ensures that all team members can access and work on prototypes effortlessly.Collaboration and Feedback Tools
The software includes powerful collaboration tools, such as reviewer mode, where users can invite others to review, chat, and add annotations to prototypes. It also supports presenting prototypes through interactive video calls with clients.Ease of Use
Despite some learning curve, Fluid UI is generally considered easy to use, especially for beginners, with a simple UI and drag-and-drop editor.Cons of Fluid UI
While Fluid UI offers many benefits, there are also several drawbacks to consider:Positioning and Layout Issues
Positioning elements can be awkward, and users often end up moving objects unintentionally. Additionally, elements can become cramped on small monitors or float on large monitors, affecting design coherence.Learning Curve
Although the interface is relatively user-friendly, learning to fully utilize Fluid UI’s features can take time, and some features are not intuitive.Text and Layout Problems
Text length can become unmanageable on large monitors, and the flexible design can lead to unpredictable results, affecting user experience.Limited Trial Version
The trial version of Fluid UI has limited features and does not allow users to upload images, which can be restrictive for testing the full capabilities of the software.Language and Upload Limitations
Fluid UI does not support Chinese characters and does not save designs automatically. It also does not allow bulk image uploads and cannot link to Dropbox folders, requiring frequent switching between designs.Functional Limitations
Fluid UI lacks certain features such as SELECT ALL and APPLY TO ALL for CTA interactions and animations. It is also on the lower end of functionality, making it more suitable for the early stages of prototyping. These points highlight both the strengths and weaknesses of Fluid UI, helping users make an informed decision about whether it meets their design and prototyping needs.
Fluid UI - Comparison with Competitors
Unique Features of FluidUI
- Comprehensive Pre-built UI Kits: FluidUI offers extensive libraries of UI components for material design, iOS, and wireframing, making it easier to create prototypes quickly.
- Real-Time Collaboration: FluidUI allows teams to collaborate in real-time, enabling simultaneous work on prototypes, live video calls, and real-time feedback. This feature is particularly useful for remote design teams.
- Interactive Prototyping: The tool supports adding animations and interactive gestures such as taps, swipes, and clicks, and allows linking multiple pages according to requirements.
- Accessibility: Prototypes can be accessed via a desktop app or browser, and tested on any mobile or tablet using free player apps.
Alternatives and Comparisons
Mockitt
- AI Prototyping: Mockitt stands out with its AI-enabled prototyping, offering rapid prototyping and a vast library of UI components. It also integrates with various design tools and project management systems, and can generate code snippets for developers. Unlike FluidUI, Mockitt has a stronger focus on AI-driven prototyping and broader integration capabilities.
- Pricing: Mockitt offers plans from free to custom enterprise pricing, similar to FluidUI’s pricing structure.
Figma
- Cloud-Based Collaboration: Figma is renowned for its real-time collaboration features, allowing multiple users to work on a project simultaneously. It offers a comprehensive suite of features for creating interactive prototypes and designing user interfaces, including vector-based design and developer handoff. Figma’s collaboration features are more advanced, and it integrates well with other design systems and plugins.
- Pricing: Figma’s pricing varies, but it generally offers more flexible plans, including a free tier and various paid options.
Lunacy
- Vector Graphics Editing: Lunacy is an editor for high-quality vectors, specifically crafted for UI/UX and web design. It offers AI-powered features to accelerate the design process and is compatible with Sketch, allowing for easy integration. Lunacy’s focus on vector graphics and compatibility with Sketch sets it apart from FluidUI’s broader prototyping capabilities.
- Pricing: Lunacy has a free plan and a Pro tier at $11.99 per month, per user, along with custom pricing for enterprises.
Overflow
- User Flows and Presentations: Overflow is geared towards UX designers and professionals, focusing on crafting interactive user flows, presentations, and walkthroughs. It offers advanced features like annotations for asynchronous collaboration, customizable templates, and version control. Overflow is more specialized in visualizing and communicating design ideas compared to FluidUI’s prototyping focus.
- Pricing: Overflow offers a free trial and plans starting at $14.95, with custom pricing for enterprises.
Other Alternatives
Moqups
- Visual Collaboration: Moqups is a visual collaboration tool that combines whiteboard, diagram, and design features. It allows for real-time collaboration on wireframes, mockups, diagrams, and prototypes. Moqups is a good alternative if you need a broader range of visual materials and collaboration tools.
Sketch
- Vector-Based Design: Sketch is a vector-based design tool primarily used for UI/UX design and prototyping. It offers advanced design features and is highly regarded for its clean interface and reusable symbols. However, it is exclusive to macOS and lacks native cloud-based collaboration, which might be a limitation for some teams.
In summary, while FluidUI excels in real-time collaboration and interactive prototyping, other tools like Mockitt, Figma, Lunacy, and Overflow offer unique features that might better suit specific needs such as AI-driven prototyping, advanced collaboration, vector graphics editing, or specialized user flows and presentations.

Fluid UI - Frequently Asked Questions
Frequently Asked Questions about Fluid UI
How much does Fluid UI cost?
Fluid UI offers several pricing plans. The starting price is $8 per month for the Solo plan, which includes 5 projects, unlimited pages, unlimited uploads, and the ability to design interactive app prototypes. The Pro plan is $19 per month and adds features like interactive video presentations and export options. The Team plan is $42 per month and includes unlimited projects, real-time collaboration, and the ability to add up to 4 extra teammates.Does Fluid UI offer a free trial or a free plan?
Yes, Fluid UI provides a free trial, and it also offers a free plan with limited features. The free plan allows access to the wireframe library, but other advanced features are available only with a paid account.What are the key features of Fluid UI?
Fluid UI offers several key features, including mobile support, real-time collaboration, feedback management, screen capture, and the ability to create interactive app prototypes. Users can add animations and interactive gestures, link multiple pages, and test prototypes on mobile and tablet devices using the free player apps. Additionally, it supports exporting screens, screen flows, and HTML for offline previewing.How does collaboration work in Fluid UI?
Fluid UI allows for real-time collaboration on projects. With the Team plan, you can add up to 4 extra teammates to collaborate on projects simultaneously. The platform also supports comments and feedback, interactive video presentations, and the ability to invite multiple users to review, chat, and add annotations to prototypes.Do I need coding knowledge to use Fluid UI?
No, you do not need any knowledge of coding to use Fluid UI. The tool is designed to help users create and design app prototypes without requiring any coding skills. It is user-friendly and allows designers to focus on the design aspects of their projects.How does Fluid UI handle data storage and backup?
Fluid UI automatically saves your work both locally and online every few minutes, as well as every time you click the preview button. The platform stores data for inactive accounts for up to a year, after which you will receive a warning email before the account is deleted. You can also restore older versions of your project by selecting the version history in the home menu.Can I test my prototypes on real devices?
Yes, you can test your prototypes on real devices using the Fluid UI player apps for Android and iOS. This allows you to see how your app will look and feel on a real device and to walk clients or stakeholders through the app layout and functionality while getting feedback.What kind of customer support does Fluid UI offer?
Fluid UI provides live support and training to its users. This includes assistance through live presentations and other support channels to help users effectively use the platform.Are there any limitations to the free account?
Yes, the free account has several limitations. For example, it only allows access to the wireframe library, and you cannot upload images or access high-quality iOS, Android, Windows, Tablet, and wearables widgets without a paid account. Paid accounts unlock additional features such as interactive video presentations, export options, and real-time collaboration.Can multiple users edit the same project simultaneously?
Currently, Fluid UI does not allow multiple users to edit the same project at the same time. However, real-time collaboration is available, and team members can work together on the same prototype, though not simultaneously editing the same project.How do I delete or pause my Fluid UI account?
You can cancel and delete your account at any time by contacting Fluid UI. Additionally, you can pause your paid account and stop billing through the account settings in the home menu. When you pause your account, you will still have access to your projects but only with the features available in the free account.
Fluid UI - Conclusion and Recommendation
Final Assessment of Fluid UI
Fluid UI is a versatile and user-friendly design tool that stands out in the AI-driven product category, particularly for those involved in web and mobile prototype creation. Here’s a comprehensive look at its benefits and who would most benefit from using it.Key Features and Benefits
Prototype Creation
Fluid UI allows users to create web and mobile prototypes quickly, using a wide range of pre-built UI kits, including Material Design, iOS, and Wireframe libraries. This speeds up the design process significantly.
Real-Time Collaboration
The platform supports real-time collaboration, enabling entire teams to work on the same prototype simultaneously, regardless of their location or time zone. This feature enhances teamwork and feedback loops.
Interactive Elements
Users can easily add interactivity to their prototypes with mouse and touch gestures, making the prototypes more engaging and realistic.
Feedback and Review
Fluid UI includes integrated review and feedback functions, allowing designers and developers to invite others to evaluate prototypes, add annotations, and discuss design aspects. This facilitates smoother and more efficient prototype iterations.
Remote User Testing
The platform supports remote user testing, enabling teams to observe how end-users interact with the prototype and gather valuable feedback.
Accessibility
Prototypes can be accessed via desktop, browser, or mobile apps, ensuring flexibility and convenience. Any changes made are automatically synced to the cloud.
Who Would Benefit Most
Fluid UI is particularly beneficial for several groups:Designers and Developers
Those involved in the initial stages of product development will find Fluid UI invaluable for creating and refining prototypes quickly and collaboratively.
Product Owners and Visionaries
Individuals responsible for overseeing the development of products can use Fluid UI to communicate their vision effectively and gather feedback from stakeholders.
Marketing and UX Teams
Teams focused on user experience and marketing can leverage Fluid UI to test user interactions, gather feedback, and refine the user experience before moving to the development phase.