If your user interface isn’t familiar, it’s failing. Jakob’s Law, coined by usability expert Jakob Nielsen, drives this home: Your users spend most of their time on other platforms. Those platforms shape their expectations, not yours.

Understanding and prioritising familiarity in design isn’t just important, it’s a must for great UX.

Why familiarity is non-negotiable

Look at the apps and websites you use daily – social media, shopping websites, productivity tools. You instinctively know where the search bar is or how the checkout process works. That’s not accidental, it’s behaviour that’s been ingrained over time.

Familiarity isn’t just nice-to-have, it’s critical. It eliminates friction, streamlines usability, and keeps users engaged by making your product feel intuitive from the start.

Users spend most of their time on other sites. This means that users prefer your site to work the same way as all the other sites they already know.

Applying Jakob’s Law: Stop reinventing the wheel

Stick to what already works

Let’s get one thing straight: Users don’t want to learn how to use your product – they want it to just work. Breaking away from standard UX patterns doesn’t make you innovative, it makes you confusing.

Instead, focus on familiar design choices that reduce the learning curve and keep users coming back. Here’s how:

• Navigation menus: Horizontal navigation bars or hamburger menus for mobile apps aren’t just trends, they’re what users expect. Deviate from these norms, and you risk losing them.
• Forms: Use clear labels, placeholder text, and simple error messages. Anything else creates frustration.
• CTAs: Keep calls-to-action simple and obvious, like “Sign up” or “Add to basket” in bold, contrasting colours.
• Icons: Universal icons like magnifying glasses for search or shopping baskets exist for a reason – stick to them!
• Content layouts: Humans scan in F-shaped or Z-shaped patterns. Place key information where their eyes naturally go first.

Familiarity isn’t a crutch – it’s a tool. By leveraging what users already know, you free up their mental bandwidth, allowing them to focus on solving their problems with your product. Innovation means sticking to what works and only breaking the rules when necessary.

Keep design interfaces simple

Complexity kills usability. Borrowing from familiar structures and recognisable design elements makes navigation second nature for your users. Simplicity isn’t just about aesthetics, it’s about getting users to their goals without friction.

Here’s how to master simplicity:

• Limit options per screen: Too many choices paralyse decision-making. Stick to 3–5 clear options per page.
• Minimise form fields: Only ask for the absolute minimum information you need.
• Cut clutter: Focus on what’s essential and remove distractions.
• Effortless navigation: Use familiar navigation patterns like hamburger menus or tab bars.

Regularly test and gather feedback from your users to simplify and improve your design. User testing can reveal pain points and areas for refinement.

Be consistent

Consistency is essential for building trust. Users rely on patterns, and your product must deliver a reliable experience every time.

Here’s how to introduce consistency:

• Own your colour scheme: Use your primary and secondary colours consistently across all pages and components.
• Lock in your layouts: Keep headers, menus, footers, and key elements in the same place on every page.
• Standardise functionality: Buttons should behave predictably – don’t mix styles or actions.

Consistency reduces cognitive load, strengthens your brand, and ensures a seamless user experience.

The impact of familiarity

Familiarity is a game-changer in design. It removes barriers, builds trust, and empowers users to engage confidently with your product. Predictable flows – like streamlined navigation or smooth checkout processes – boost conversions.

But familiarity doesn’t have to mean blandness. Thoughtful details like bold typography, eye-catching animations, or micro-interactions can make your platform memorable without sacrificing usability. Remember, innovation should align with user expectations, enhancing usability rather than complicating it.

Designing interfaces that lead, not follow

At Intrface, we don’t just design interfaces – we redefine them. Ordinary isn’t in our vocabulary. Our bold, intuitive designs challenge the norm, blending familiarity with innovation to create experiences that captivate and drive real results for your business.

Think your UX is good enough? Let’s find out. Book a 15-minute call and discover what it really means to stand out.