Do I need a UX designer for my app?

Gabriel Hidalgo
Freelance Product Designer (UX/UI) · Sydney

Do you need a UX designer for your app? The signs you do, what a designer changes that a developer doesn't, and what app design costs in Australia.

A founder at an oak kitchen table frowning at her phone, a mug and a notebook beside her

You need a UX designer for your app if users sign up and don't come back, support questions keep repeating, or every new feature makes the product harder to use. If none of that is happening yet, your developer can probably carry the design for now, and a short review is enough to tell you when that changes.

I've been designing apps and websites for 8+ years, including the CommBank app, and this is the question I hear most from founders and small teams in Australia. Here's how to answer it for your own product, what a designer actually changes, and what it costs.

What a UX designer does that a developer doesn't

A good developer builds exactly what's specified, and builds it well. The trouble is that most apps are never fully specified. Someone still has to decide what the product should do and how it should feel to use, and when nobody owns that, the developer decides by default, one screen at a time.

A UX designer owns those decisions:

  • The flow. What order things happen in, what you ask for and when, and what a new user sees before they've committed to anything.
  • The states. What the screen looks like when it's empty, loading, broken or full. These are the moments that make an app feel finished or not.
  • The words. Button labels, error messages and instructions that tell people what to do next instead of what went wrong in the database.
  • Small screens. Layouts and tap targets that work with a thumb on a phone, not just a mouse on a laptop.
  • Consistency. One set of components and patterns, so the tenth feature looks and behaves like the first.

None of that is about making the app prettier. It's about whether people can get to the point where your product is worth paying for.

Signs you need a UX designer now

You don't need a designer because a competitor has one. You need one when the product is costing you users or time. These are the signs I look for first:

  • People sign up, then disappear. Your analytics show sign-ups but very little activity after the first session.
  • The same support questions keep coming in. "Where do I find…", "How do I change…", "It won't let me…". Each one is a design problem with a support cost attached.
  • Every feature makes it harder to use. New options get bolted onto existing screens until nobody can find anything.
  • Your developer is making the design calls. It works, but the product feels stitched together, because it was.
  • It was built fast with AI and it shows. A Lovable, Codex or Claude prototype got you to launch. Now real customers are finding the gaps: confusing forms, missing error states, layouts that break on mobile.
  • It looks dated next to competitors. People decide whether to trust you before they've tried anything.

If two or more of these sound familiar, design is the bottleneck, not development.

When you probably don't need one yet

To be fair to your budget: if you're still testing whether anyone wants the product at all, a full design project is usually premature. A rough prototype and twenty conversations with potential users will teach you more. The same goes for internal tools used by a handful of people who can ask a colleague when they're stuck.

The point to bring in a designer is when you have real users, a clear idea of what the product is for, and evidence that people are getting lost on the way to it.

What it costs to design an app in Australia

It depends on scope more than anything else. One key flow, like sign-up or checkout, costs far less than a whole product. As a rough market guide, freelance designers in Australia typically charge $80–150 an hour and boutique studios $150–220. Larger agencies sit above that, with project and account management on top.

I don't bill hourly. You get a fixed quote before work starts, so the number can't creep while the work happens. If you're not sure what needs fixing first, a UX audit from $750 (AUD, ex GST) reviews the flow that matters most and gives you a ranked list of what to fix, which you can hand to your developer or use to scope a design project.

Your options, from smallest to largest

There are three sensible ways to bring design in, and most of my clients move through them in this order:

  • A UX audit. A senior review of your app or site with a prioritised fix list. Low risk, quick, and it tells you whether you need more.
  • A design project. A fixed-price redesign of a flow or a whole product, handed over with specs and components your developers can build from. That's what my app and website design service covers, from web apps and dashboards to mobile apps.
  • A design retainer. A set amount of senior design each month, for teams with steady design work but not enough for a full-time hire.

What working with a designer looks like

On a typical app project I start with a short call about what you're building and who it's for, then look at your analytics and the product itself before designing anything. I prototype with AI to test ideas sooner, then design the final screens on reusable components, with every state your developers need. I stay available while it's built, because the details that matter most usually surface during development.

On the RewardPay web portal, I designed four reward partners, paid plans and referrals into one product, and monthly signups grew about 4×. In my experience the work that moves the numbers is usually in the flow and the states, not the visual polish.

The short answer

If your users are getting lost, your support inbox is doing the job your interface should, or your developer is designing by default, you need a UX designer. If you're not sure, start with a review rather than a redesign.

You can see how I work on the app and website design page, or tell me what you're building and I'll come back with a fixed quote.

Let's start something big

Booking new projects and retainers. Book a free 30-minute call to talk through what you need, or send me an email.

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