5 Common UI/UX Mistakes in Business Apps (And How to Avoid Them)

Ever build a business app that runs perfectly, only for users to… hate it?

Been there.

You’ve got clean endpoints, automated workflows, bulletproof logic—and yet support tickets keep coming in like:

“Can’t find the thing I need.”

“Where’s the Save button?”

“This page is weird on my phone.”

Turns out, bad UX can ruin even the best backend.

“It Works Fine” Isn’t the Same as “It’s Usable”

As devs, we’re often laser-focused on functionality. That makes sense. We want our apps to be fast, secure, and integrated properly.

But if nobody can use what you built without training, duct tape, or daily rants, that’s not a win. That’s a failure in disguise.

Here are 5 UX sins I’ve made (and seen) way too many times—plus how I avoid them now using Bellini, our app builder at Lonti.

Yes, users need quick access to info. No, that doesn’t mean you should cram every chart, table, and button into one layout.

Keep things modular. Group actions logically. Show only what’s needed right now—hide the rest until it matters.

Dropdown here. Sidebar there. “Back” button sometimes. It’s a disorienting mess.

Rule of thumb: don’t surprise users. Use consistent nav patterns. Let them build a mental model of your app.

“But it’s a desktop app!” Cool. Until someone logs in on a tablet during a meeting or tries to approve something from their phone.

Design mobile-aware layouts. Test at different breakpoints. Make buttons tap-friendly.

You hit Submit. Nothing happens. Was it successful? Is it stuck? Should I reload?

Give users clear feedback—loaders, confirmation messages, even a quick toast notification. They’ll feel better. You’ll get fewer bug reports.

Just because it’s a business app doesn’t mean it can be mouse-only, color-unfriendly, or impossible to tab through.

Follow the basics: semantic HTML, ARIA roles, keyboard support. Your app gets better for everyone—not just people with screen readers.

I use Bellini because it strikes a sweet spot between low-code speed and dev-level control.

I can drag UI components into place, bind them to live APIs (REST/GraphQL), and style them in minutes.
But I can also write custom JS, drop in external libs, tweak behavior, and inject logic when the default options don’t cut it.
Responsive design is built in. Accessibility helpers? Built in. Component reuse? Yep.

It’s not a “no-code toy.” It’s a real tool that respects developers—and lets me ship frontends that don’t suck.

If your users are frustrated, they won’t care how elegant your API architecture is.

UX issues kill adoption, create shadow IT, and waste dev effort. But most of them are fixable—if you start caring early.

You don’t need to be a full-time designer. Just don’t ignore the frontend like it’s an afterthought. A few better defaults go a long way.