UI vs UX: What's the Difference and Why It Matters

History of UI & UX

It all started with blinking cursors and black screens. In the 1970s, home computers arrived, but they didn’t look or feel anything like the sleek devices we use today. Back then, if you wanted your computer to do something, you had to talk to it in code. Not simple code. Complex, cryptic lines of instructions just to perform the most basic tasks. It was powerful, but painfully inaccessible.

Then came a spark of brilliance. In the 1980s, scientists at Xerox PARC flipped the script. They introduced the graphical user interface — the GUI. Suddenly, computers had buttons. Menus. Icons. Little windows you could click and drag. You didn’t need to be a programmer anymore. You just needed to know how to point, click, and explore.

Source: Amy J. Ko, Jacob O. Wobbrock, Eric Whitmire (2024). User Interface Software and Technology.

That moment changed everything. It lit the fuse for the Personal Computer Revolution. Suddenly, anyone could use a computer, not just engineers.

Fast forward to 1984. Apple introduced the Macintosh. It was sleek. Friendly. You could operate it with a simple mouse, gliding across the screen with ease. This wasn’t just new. It was groundbreaking.

But as computers became easier to use, expectations grew. By the mid-1990s, the conversation shifted. It wasn’t just about making computers functional - it was about making them intuitive. That’s when the terms “UI” (User Interface) and “UX” (User Experience) started showing up. The idea was simple: technology should work for people, not the other way around.

Then came the 2000s. Google and other rising tech giants realized something critical: If they wanted people to stay engaged, the experience had to be delightful. It wasn’t just about access anymore. It was about enjoyment. Simplicity. Flow.

But here’s the exciting part: the potential feels limitless. Companies are embracing the challenge. Designers are pushing boundaries. The goal? Seamless, intuitive, human-centered experiences.

Websites? Absolutely. Mobile apps? Of course. But that’s just the beginning. Every new device brings fresh challenges and fresh possibilities.

Definition of UX and UI Design

UX design. UI design. You hear these terms everywhere. They sound similar, don’t they? But they’re not the same.

Let’s break it down.

User Experience design (what we call UX) goes beyond how a product looks. It’s about how it works, how it feels, and how people interact with it from start to finish. Think of it like this: UX is the entire journey. The research, the problem-solving, and the little details that make something easy to use, enjoyable, and accessible to everyone.

UX designers dig deep. They ask questions. Who are the users? What do they need? How do they behave? Their job is to connect the dots between human behavior and smart design choices that make life better — or at least make using the product simpler.

Now, meet UI design. Short for User Interface design. This is where the visuals come in. The layout. The screens. The buttons, icons, and menus — the interactive parts you click, tap, or swipe.

UI is what you see. It’s how everything looks and feels at a glance. It’s the difference between clunky and clean. Between confusing and clear.

But here’s the thing — UX and UI aren’t rivals. They’re partners. They work together. You can have a stunning UI, but if the UX is terrible? People won’t stick around. You can design an effortless, intuitive UX, but without good UI? It still falls flat.

Great products need both.

Goals and Objectives of UX and UI Design

What’s the goal of UX and UI design? Simple. It’s to make life easier for the user.

But of course, there’s more to it than that.

The primary aim of UX design is to create products and services that meet real needs: your needs, your goals, your expectations. UX designers don’t just guess what people want. They dig in. They research. They observe. They ask questions. Who is the user? What problem are they facing? What’s getting in the way?

It starts there.

Once they understand the problem, UX designers brainstorm ideas, test solutions, and iterate. Their mission is to craft an experience that feels intuitive, efficient, and even enjoyable, something that just works without making you think twice.

Because when it feels easy, when it feels right, that’s good UX.

Now, let’s talk about UI design.

UI is all about the surface: the screens you see, the buttons you click, the menus you explore. But great UI design isn’t just decoration. It’s functional beauty. It guides you. It helps you move smoothly from point A to point B without friction.

UI designers shape the layout, build the interactive elements, and ensure that everything looks sharp, feels consistent, and behaves as expected.

UX Design

The task of a UX designer is not limited to just creating enjoyable, user-friendly, naturally intuitive websites, but doing this for a whole range of products.

UX Design Functions by Clay

Their work even extends to the aesthetics, as well as the product’s overall usability. All this requires extensive research to gain an understanding of user behavior so that their designs will meet their wants and needs.

The job of a UX designer goes beyond creating user-friendly, intuitive websites. It extends to a wide range of products. Our job involves improving aesthetics and overall usability. This requires extensive research to understand user behavior and ensure our designs meet user needs and preferences.

This approach is illustrated in a project with Corsair, where our team developed an end-to-end design system, including desktop software, mobile apps, and device interfaces, all tailored to improve the user experience and meet specific user requirements.

Corsair Design by Clay

UI Design

UI designers create the appearance and interactive aspects of the digital product and/or website and how they behave. The bottom line is that the UI designer is responsible for how the interface looks and feels regarding the visual elements and how they’re all laid out. UI design focuses on a product's aesthetic and interactive elements, such as layout, visual properties, and usability.

The goal is for users to find what they need easily. The UI designer must consider how different platforms will display their designs, including desktop and laptop computers, tablets, mobile devices, and more. User interface design is crucial in creating visually appealing and user-friendly digital products.

What Is a Website User Interface Design? by Clay

UX vs. UI Design

UX and UI are two entirely different things, although both focus on enhancing the user’s journey. As previously stated, UX designers work on the website or product’s general functionality, feel, and ease of use. Their design goal is to meet the needs and wants of users as revealed in their behavior.

On the other hand, UI designers focus on the interface's structure and aesthetics by creating naturally intuitive designs that can be seamlessly displayed on all types of platforms. The layout and visual aspects of the interface must allow the user to easily find what they need.

Furthermore, UX designers must think about how the product or website can be made accessible to the impaired or disabled, whereas UI designers are concerned about fonts and color schemes in creating a visual experience that users find pleasing to the eye. Therefore, both designers are vital to the successful completion of digital products, but they do play distinctly different roles in reaching that goal.

UI vs UX by Clay

UX Designer vs UI Designer: What Are They Responsible For?

What Are UX Designers Responsible For?

UX designers are responsible for ensuring that the user’s journey is not only intuitive but enjoyable as well. Their task is to create a digital product or website that is cohesive in terms of aesthetics, layout, usability, and navigation.

They research users via surveys, interviews, and analytics to understand their behavior, wants, and needs. They usually collaborate with the UI designer working on the same website or product, focusing on its look and feel.

UX Designer Responsibilities by Clay

As advances in technology evolve and users start to expect more, it is critical that UX designers keep up with the trends in order to create a compelling, user-friendly design. UX designers must continually find new ways of improving the digital products and websites they work on.

Their job involves creating everything from storyboards and detailed wireframes to complete prototypes of their designs, as they strive to create user experiences that are not only visually appealing but also efficient.

The following is a list of responsibilities and routine duties that today’s UX designer must handle regularly:

• Research on the target audience, customers, and users
• Continually monitor and analyze competitor products
• Product design strategy and setup, wireframing, and ongoing content creation
• Testing of prototypes to evaluate outcomes and fine-tuning of further versions
• Set tracking goals and improve optimization by implementing UX analysis
• Coordinate with UI developers and designers in planning future development

The role of a UX designer is all-encompassing and exciting. It involves product design, often managing multiple projects at once, and handling certain marketing aspects. Basically, the work of a UX designer varies considerably based on their training and experience as well as the company that employs them.

What Are UI Designers Responsible For?

A UI designer ensures that the website or digital product’s user interface is visually pleasing and functional. They create a nice-looking layout that is intuitive and easy for users to navigate.

As with UX designers, UI designers must also stay up to date on the latest tech and design trends so that the layouts they design meet or even exceed user expectations. They create the visual elements using After Effects, InVision, Photoshop, and Sketch. These include the buttons, color schemes, icons, images, typefaces, and videos.

UI Designer Deliverables

Furthermore, a UI designer has to figure out how the designs will be displayed on various platforms, including desktop and laptop computers, tablets, and mobile devices. To achieve a consistent look on all types of platforms, they have no choice but to create multiple versions of every design to fit the size and resolution of each device.

They need to combine their technical expertise with design principles to create a user experience that attracts users and engages them enough to keep them returning.

Creating a flawless user experience requires combining a number of different user interfaces together so that they work in unison, resulting in a beautiful, eye-catching digital product or website.

To be precise, UI designers must focus on creating each interface or screen that the user will see on their journey. In contrast, UX designers consider all the imperceptible aspects of the user’s experience. Together, these elements create the user’s full experience. Unlike UX designers, UI designers' boundaries are very distinct, so UI designers can easily describe their limits.

Career Prospects and Salary

The demand for UX/UI designers is high, and the field is expected to continue growing in the coming years. According to Glassdoor, the average salary for UX designers in the US is $123,000, while UI designers can expect an average salary of $130,000. Career prospects for UX/UI designers are diverse, with opportunities in various industries, including tech, finance, healthcare, and e-commerce.

With experience and a strong portfolio, UX/UI designers can move into leadership roles, such as design director or creative director, or start their own design studios. The growing importance of user experience in digital products ensures that skilled UX/UI designers will continue to be in high demand.

The Role Research Plays in Both UX & UI Design Processes

UX Research

Research is a vital aspect of both UX and UI design. UX designers undertake several different methods to understand user behavior so that they can create designs that are appealing and meet users' needs and wants. They must figure out how users interact with their digital products and websites.

With this knowledge, they can focus on creating user experiences that are intuitive, enjoyable, and engaging. Additionally, UX research allows designers to pinpoint potential issues early in the process so that they can be addressed before launching the product or website.

By employing research methods throughout the design process, developers can create user experiences that successfully provide value to individual consumers and businesses.

UX Research Process Steps by Clay

UI Research

As discussed above, UX and UI research are vital to the overall design of digital products and websites. Like UX designers, UI designers must collect information on user preferences and behavior so that users find their digital products intuitive, enjoyable, and engaging.

With sufficient research, designers can identify potential issues early on, allowing them to make the necessary changes before the product is launched into the marketplace.

Using effective research methods, UI designers gain a solid understanding of how users interact with their digital products and websites. This allows them to create user experiences that individual consumers and businesses find valuable.

UX & UI Work Hand-In-Hand

UX and UI web development teams must work together if they expect to create successful websites and digital products, including apps. UX designers focus on the user experience, which is determined by researching users' behavior, needs, and preferences, whereas UI designers focus on how the website or product looks.

By combining the talents of both experts, developers can create visually appealing journeys that also work intuitively so that users can quickly and easily find what they need. In combination, UX and UI designers work to create attractive digital experiences that users find enjoyable and engaging while giving them an intuitive interface, allowing them to easily navigate their digital products and websites.

How UI and UX Work Together by Clay

Importance of UX/UI Design

Without UX/UI designers working together, creating successful digital products, websites, and apps would be difficult, if not impossible. By combining their talents, all aspects of digital product, web, and app development can ultimately succeed in the creation of products and websites with user experiences that are intuitive and pleasing to the eye.

UX/UI design is a basic element of the process of creating successful digital products and websites. The goal is for the resulting product, website, or app to meet and possibly exceed user expectations without the need for expensive redesigns down the road. UX/UI also provides companies with an advantage over the competition by enhancing customer satisfaction and, more importantly, their loyalty.

5 Advantages of Investing in UI/UX Design by Clay

For example, when consumers finds that a website or app is attractive while being easy to use, they are more apt to return time and time again. Likewise, if consumers find a difficult, confusing screen that doesn’t work quickly, they’ll immediately leave, never to return again. This obviously leads to lost sales and revenue.

In addition, UX/UI design is extremely important in raising search engine rankings, something all businesses are trying to do, so that they have better odds of reaching their target market.

Search engine algorithms favor websites with pages that load quickly, have accessibility features for the disabled and impaired, and are optimized for mobile devices. All these aspects are built into the design throughout the UX/UI design process.

At the end of the day, UX/UI design is vital for any commercial enterprise hoping to penetrate digital markets and offer consumers the value they’re looking for via their products and/or services.

When developers combine the talents of UX and UI designers along with the results of their research, they are able to create positive experiences that users find enjoyable and engaging. Users appreciate an intuitive interface that works quickly and effectively, whether it’s on a digital product or website.

Real-World Examples of UX/UI Design

Here are a few standout examples of exceptional UX/UI design from companies that may not be as mainstream but showcase creativity and innovation in the digital space:

Figma
Figma, a collaborative design tool, is an excellent example of intuitive UX/UI design for designers and teams. It combines functionality with a simple interface, allowing users to seamlessly collaborate on design projects in real time.

The platform’s design ensures smooth navigation and interaction, making it easy for users to access a variety of features while staying focused on the task at hand. The way Figma integrates its features — such as commenting, prototyping, and design handoff — creates an efficient user experience that encourages collaboration while keeping things visually straightforward.

Source: Figma

Notion
Notion’s UX/UI design is an impressive blend of minimalism and versatility. It offers a highly customizable workspace where users can create everything from simple to-do lists to complex knowledge bases. The UI is clean and modular, allowing users to personalize their experience while maintaining an intuitive interface.

Notion’s design also enables smooth navigation across its various features, such as databases, pages, and templates, ensuring that even complex tasks feel organized and manageable. Their thoughtful user-centric design makes the platform both powerful and easy to use for a wide range of users, from individuals to teams.

Source: Notion

Slack
Slack’s redesign, which we enjoyed crafting, shows how powerful UX/UI design can be in transforming communication tools for modern teams. Our main focus was on enhancing the user experience by making the interface cleaner and more intuitive while still keeping the core of Slack’s collaborative spirit intact.

Managing multiple conversations and tasks becomes almost second nature. This project really highlights how UX/UI design can take a communication platform to the next level, making it not only more efficient but also a pleasure to use.

Read More

• User-Centered Design (UCD): How to Design for People, Not Just Pixels
• Top 10 Must-Have UX/UI Design Tools for 2025: Enhance Your Workflow
• Effective User Testing: Key Techniques for Better UX Design

Conclusion

For digital developers to create user-friendly products and websites, they must combine the expertise and research of both UX and UI designers. Research is an integral part of the process because it allows designers to create digital products and websites that meet the users’ specific needs and wants.

When UX and UI designers work closely together, they can better design products and websites that provide value to individual consumers and businesses. The goal is to create visually appealing, intuitive interfaces that people of all ages and technical abilities find easy to use. Hence, the likelihood of their returning repeatedly is high.