What Is UX Design and How Is It Different from UI Design?

When people talk about digital design, two terms usually come up together and are often used interchangeably: User Experience (UX) and User Interface (UI). While they are closely connected, they are not the same, unlike what most people believe. But both UX and UI play a vital role in creating products that feel intuitive, look appealing, and deliver value to users. 

For businesses investing in digital products, knowing the difference between UX and UI helps in making better design and product decisions.

Back in the 1990s, Don Norman, principal emeritus at Nielsen Norman Group, coined the term “user experience” to explain everything that shapes how people connect with a company, from its products to its services. User Experience Design considers how easy the product is to use, how efficiently it helps users achieve their goals, and how satisfying the interaction feels.

Essentially covers:

Imagine opening a food delivery app. If you can quickly find your favorite restaurant, customize your order without confusion, and check out in seconds, that’s good UX at work. You didn’t have to think hard, and the app guided you smoothly to your goal.

A UX designer’s goal is to create a product that solves a problem in the most seamless way possible. Whether it’s a mobile app, a website, or a digital service, the emphasis is always on clarity, function, and value.

User Interface (UI) design deals with the visual and interactive elements of a product. This includes the layout, typography, color schemes, buttons, and animations that bring a digital experience to life.

Good UI Design makes a product famous. The colors feel inviting, the buttons are easy to spot, the icons make sense, and the layout adapts neatly to your phone screen. All of these visual details come together to guide you without words, and that’s UI design in action.

UI design covers:

A UI designer ensures the product is not just functional but also enjoyable to use. The interface guides users, sets the mood, and strengthens the brand impression.

A product with beautiful visuals but poor usability (which is just one aspect of UX) will frustrate users. Studies from the Baymard Institute show that nearly 70% of users abandon online shopping carts  due to poor experience design, even when the interface looks appealing.

On the other hand, a product with a solid experience but weak interface design may feel dull and fail to connect emotionally. That’s why UX and UI must work together.

Here’s how they complement each other:

Think of UX as the blueprint that defines how a product works, and UI as the interface that allows users to actually interact with it. Without UX, the product has no structure or logic. Without UI, the product has no surface for people to use.

The difference often comes down to visibility. The visual layer (buttons, colors, and typography) is easy to spot. What usually goes unnoticed are the months of research, testing, and problem-solving that shape how the product works.

Because of this, many assume UI is design, since it’s what meets the eye. Over time, the terms blurred further. “UX” became a buzzword that sounded fresh and forward-thinking, while “UI” carried a more technical edge. Together, they turned into a catch-all shorthand for design.

When UX works well, it disappears into the background. You rarely notice it unless it breaks. UI, on the other hand, is always visible. 

That constant presence makes it easy to confuse the interface with the entire experience.

Today, businesses cannot afford to prioritize one over the other. A strong UX ensures that users find value in the product, while strong UI makes sure they enjoy the interaction. 

When combined, they build trust, encourage engagement, and improve conversion rates.

Investing in UX and UI together leads to:

Sparklin’s work for Caratlane illustrates this marriage. Research and user interviews shaped both the customer and sales representative journeys into something simpler and more delightful. The intuitive UI amplified those insights and turned the design into a seamless experience for Caratlane customers.

Investing in UX and UI together is not optional anymore. Users have countless choices, and their expectations are higher than ever. A clunky interface or confusing navigation can quickly push them toward competitors. Remove one side and the other collapses: a strong UX without UI is like a perfectly engineered car with no dashboard, while a polished UI without UX is like a shiny shell with no engine. 

By combining thoughtful UX design with visually compelling UI, businesses can build digital products that are not only functional but also memorable.

At Sparklin, we specialize in uniting UX and UI to design products that don’t just look great but also deliver measurable impact. Our team blends creativity with strategy to help businesses create experiences that resonate with users and support long-term growth.