UI vs UX
Definition.
UI vs UX: User Interface (UI) refers to the screens, buttons, and other visual elements, while User Experience (UX) is the overall experience of a user using a product.
In More Detail
UI is what the interface looks and feels like; UX is whether the person achieved what they came to do. They usually move together but not always — a visually polished flow can still be the wrong flow.
The distinction shows up in decisions like how many steps a signup takes, what happens on error, and whether a destructive action can be undone. Those are UX questions with no visual answer, and they matter more to whether a product gets used than the choice of accent colour.
In Practice
This distinction matters most when a client asks for a redesign — sometimes the actual problem is UX (the flow is confusing) and a visual UI refresh won't fix it; worth diagnosing which one before committing to a full redesign.
Related Terms
Browse the full software development glossary, or see the frequently asked questions.
If you are working out whether this applies to your own project, the case studies show where it turned up in real builds, services lists what I take on, and pricing gives the starting figures.
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