Mobile App UI/UX Design

Mobile app UI/UX design that clarifies user flows, expresses the brand, and can be handed over to development in a structured way.

In mobile product design, user goals and decision points matter more than the number of screens. I define core scenarios, content hierarchy, and interaction behavior to create an experience that is clear, visually consistent, and ready for a structured handoff.

What can be included?

  • Core user scenarios, flow diagrams, and information architecture
  • Wireframes and high-fidelity UI for agreed key screens
  • Reusable components and a focused design system
  • Screen states and interface notes for developer handoff

How the work is scoped

The four things worth knowing before asking for a quote. No figures here — only what the figures depend on.

What sets the scope
The number of distinct flows rather than the number of screens. Empty, loaded, loading and error states inside a flow are design decisions too, and they are usually what grows the scope. The number of platforms adds to it.
How it is delivered
Ready to hand to development: a design file with components and their states, dimensions and colour values readable, a clickable prototype, and the icon and image assets required.
How feedback works
The flow and the direction of the main screens are approved first. Once the component structure exists, revisions apply to the component rather than to individual screens, which is why the direction sign-off is the critical step.
What you need to start
What the app does, the task the user has to complete, and any existing version or competitor examples. If you have a development team, knowing the technical constraints upfront makes this easier.

Working process

01

Problem and audience

We define the product goal, target users, and the essential tasks to support.

02

Flow and prototype

Critical paths are reviewed through wireframes and an interactive prototype.

03

UI system and handoff

The approved flow becomes a visual system prepared for development.

Who is it for?

A fit for teams visualizing a new mobile product or redesigning an existing app flow for greater clarity and consistency.

Frequently asked questions

What does the mobile app design service cover?

Core user scenarios, flow diagrams, and information architecture; wireframes plus high-fidelity UI design for key screens; reusable components and a base design system; and screen states with interface notes for developer handoff.

Is app development included?

This service covers UI/UX design and a structured developer handoff. Screen states and interface notes are prepared for the development team to work from directly; writing the app code is a separate scope.

Is a clickable prototype provided?

Yes. Critical user paths are evaluated through wireframes and a clickable prototype, so the flow can be tested before visual design begins.

How does the mobile app design process work?

The problem and user are defined first: product goal, target users, and the core tasks to solve. Critical paths are then evaluated through wireframes and a prototype. Finally the approved flow becomes a visual system, organized for development.

Who is this service a fit for?

Teams making a new mobile product idea tangible, or rethinking an existing app flow so it reads more clearly and consistently.

How long does mobile app design take?

The timeline is set by the number of screens and flows and the product's complexity; a few-screen MVP and a multi-module app are different schedules. Scope is clarified in the problem-and-user step, and the timeline follows.

How is mobile app design priced?

Pricing is per project, driven by screen count, flow complexity, the scope of the component library, and developer-handoff needs. After the brief is clear, the proposal matches the agreed scope.

How does the revision process work?

Flows are approved first on wireframes and a clickable prototype; the visual system is applied to the approved flow. Structural feedback is resolved at the prototype stage, so UI-stage revisions focus on visual refinement.

Discuss your mobile product

Let’s clarify the need, deliverables, and timing through a concise brief.

I reply to your message within 24 hours.

  • Core user scenarios, flow diagrams, and information architecture
  • Wireframes and high-fidelity UI for agreed key screens
  • Reusable components and a focused design system
  • Screen states and interface notes for developer handoff
Onur DemircanOnline
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Art Director building marketplace-ready visuals, brand systems, and UI/UX experiences.

I help brands, founders, and marketplace platforms with art direction, UI/UX design, branding, social media campaigns, and visual systems shaped for real-world performance.