---
title: "iOS App Design (UI/UX) for iPhone & iPad — Develak"
description: "iOS app design by Develak: UI/UX built on Apple’s Human Interface Guidelines, from user flows and wireframes to polished SwiftUI screens and app icons."
url: https://develak.com/services/ios-app-design/
language: en
updated: 2026-09-27
source: Develak
translations:
  fr: https://develak.com/fr/services/design-application-ios.md
---

Canonical page: <https://develak.com/services/ios-app-design/>

# iOS app design that feels native

Develak designs iOS apps that feel at home on iPhone and iPad: user flows, wireframes, polished interfaces and app icons built on Apple’s Human Interface Guidelines. We also write the SwiftUI code, so every screen we draw is designed to be built.

[Start a project](https://develak.com/contact/) [Explore our apps](https://develak.com/apps/)

- UI/UX
- Human Interface Guidelines
- SF Symbols
- Dark mode
- Accessibility

## What makes a good iOS app design?

A good iOS app design is one users don’t have to learn. It follows the conventions people already know from Apple’s own apps — navigation, gestures, sheets, SF Symbols — and spends its originality where it matters: your brand, your content and the one feature that makes your app worth downloading.

iOS app design covers two layers. UX design decides what the app does and in which order: user journeys, information architecture, onboarding, empty states and error messages. UI design decides how it looks and feels: typography, color, spacing, motion, icons and the small details that make an interface feel crafted.

Because we also build apps, our designs are grounded in what SwiftUI does well. That avoids gorgeous mock-ups that turn into weeks of custom code, and keeps your budget on the features users will notice. When the design is ready, our [iOS app development](https://develak.com/services/ios-app-development/) service can take it all the way to the App Store.

### At a glance

- **Service**: UI/UX design for iPhone and iPad apps
- **Based on**: Apple’s Human Interface Guidelines
- **Deliverables**: Flows, wireframes, screens, prototype, icon
- **Covers**: Light and dark mode, Dynamic Type, accessibility
- **Hand-off**: Design system mapped to SwiftUI components
- **Combines with**: Development, MVP, localization

Guides to go further

- [App Store submission checklist](https://develak.com/blog/app-store-submission-checklist/): Guide
- [SwiftUI vs Flutter vs React Native](https://develak.com/blog/swiftui-vs-flutter-vs-react-native/): Guide

## Design work, from first flow to final pixel

We design the complete experience, not just the showcase screens.

- **UX research & user flows**: Who uses the app, what they need to accomplish, and the shortest path to get there.
- **Wireframes & information architecture**: Low-fidelity layouts of every screen to validate structure and navigation before visual design.
- **High‑fidelity interface**: Final screens in light and dark mode, with typography, color and spacing tuned for iPhone and iPad.
- **Interactive prototype**: A clickable prototype to test the flow with real people before development starts.
- **App icon & visual identity**: An icon that stands out on the Home Screen and in search results, in every required size and appearance.
- **Accessibility & inclusive design**: Dynamic Type, sufficient contrast, VoiceOver labels and comfortable touch targets, planned from the start.

## Every screen, specified to the point

Developers receive more than pictures: each component comes with its measurements, text styles and colors, in light and dark mode.

- **Measured in points**: Margins, spacing and touch targets are written down, starting from Apple’s 44 × 44 pt minimum for anything you can tap.
- **Apple’s text styles**: Titles and body text use the iOS text styles, so they grow with Dynamic Type instead of breaking the layout.
- **Colors with a meaning**: Semantic colors such as label and systemBackground adapt to dark mode and to higher contrast by themselves.

## Who needs iOS app design?

Design deserves its own engagement whenever the experience is what sells the app.

- **Founders before development**: Validate the concept with a prototype, then brief any developer with a precise, buildable design.
- **Apps that need a redesign**: Low ratings, confusing navigation or a dated look: we rethink the experience and modernize the interface.
- **Teams with in‑house developers**: Your developers build; we provide the flows, screens and design system they build from.

## What you receive

A complete, developer-ready design package — whether we build the app or your own team does.

[Start a project](https://develak.com/contact/)

- User flows and a map of every screen
- Wireframes of every screen and state
- High-fidelity screens in light and dark mode
- A clickable prototype
- The app icon in every required size
- A design system: colors, type scale, components
- Specifications mapped to SwiftUI components
- App Store screenshot layouts, on request

## How we design your app

Short loops, frequent reviews and decisions you can see.

1. **Understand**: Goals, audience, competitors and constraints — including what users of similar apps complain about in their reviews.
   You get: Design brief
2. **Structure**: User flows and wireframes. We agree on what each screen does before discussing how it looks.
   You get: User flows & wireframes
3. **Visual design**: A visual direction on key screens first, then the full interface, in light and dark mode.
   You get: Light & dark screens
4. **Prototype & test**: A clickable prototype you can put in front of users, and a round of refinements based on what you learn.
   You get: Clickable prototype
5. **Hand‑off**: A design system and specifications mapped to SwiftUI, so development starts without guesswork.
   You get: SwiftUI-ready specs

## How long does iOS app design take?

Design time grows with the number of screens and states. As a guide:

1. **Understand**: Typical duration: A few days
   Goals, audience, benchmark.
2. **Flows & wireframes**: Typical duration: Days to a few weeks
   Structure of every screen.
3. **Visual design**: Typical duration: A few weeks
   Final interface, light and dark.
4. **Prototype & hand-off**: Typical duration: A few days
   Tests, refinements, design system.

Guidance, not a guarantee: the plan attached to your quote gives dates for each review.

## Designed with Apple’s vocabulary

We design with the system’s own building blocks, so the result is natural to use and natural to build.

[The full toolbox](https://develak.com/about/#tech)

- **Human Interface Guidelines**: Apple’s reference for navigation, layout and controls.
- **SF Symbols**: Thousands of icons that match the system font.
- **SF Pro & Dynamic Type**: System typography that scales with user settings.
- **Dark Mode**: Every screen designed for both appearances.
- **Accessibility**: VoiceOver, contrast and touch targets.
- **SwiftUI previews**: Designs checked in real code, early.
- **Widgets & Live Activities**: Glanceable surfaces beyond the app.
- **App icons**: Default, dark and tinted appearances.

## Interfaces from our own catalogue

Every Develak app is designed in-house. These four show the range — from data-rich cellar logs to calm, photo-first journals:

[See all 34 apps](https://develak.com/apps/)

- **[Corkwell](https://develak.com/apps/corkwell/)**: Wine Cellar Manager
  Reads wine labels on-device and maps your real racks
  Lifestyle & Hobbies · iPhone
- **[Cedary](https://develak.com/apps/cedary/)**: Cigar Cellar & Aging
  Humidor journal with a visual aroma wheel
  Lifestyle & Hobbies · iPhone
- **[Bonsaiku](https://develak.com/apps/bonsaiku/)**: Bonsai Care & Log
  Photo timeline with a before/after slider
  Lifestyle & Hobbies · iPhone
- **[Reeflo](https://develak.com/apps/reeflo/)**: Reef Aquarium Tracker
  Dark-first design, trend charts and target zones
  Lifestyle & Hobbies · iPhone

## iOS app design: your questions

What teams ask us before starting a design project.

**Ask your question** Not covered here? Write to us — we answer every message ourselves.

[contact@develak.com](mailto:contact@develak.com)

### How much does iOS app design cost?

The cost of iOS app design depends on the number of screens, states and platforms (iPhone, iPad, Mac). Develak quotes design as a fixed-scope project after a first call, either on its own or together with development.

### Do you follow Apple’s Human Interface Guidelines?

Yes. We start from the Human Interface Guidelines and native components, then bring your brand on top. Apps that feel native are easier to use, faster to build and smoother through App Review.

### What is the difference between UI and UX design?

UX design defines how the app works: user journeys, structure, onboarding and the order of every step. UI design defines how it looks and feels: typography, color, spacing, icons and motion. A good iOS app needs both, and we design them together.

### Can you design an app that another team will develop?

Yes. The hand-off includes a design system, specifications and component names mapped to SwiftUI, so any iOS developer can build from it with confidence.

### Do you design the app icon?

Yes. We design the icon together with the interface and deliver it in every required size, including the dark and tinted appearances introduced in recent versions of iOS.

### Is accessibility included?

Always. Dynamic Type, color contrast, VoiceOver labels and comfortable touch targets are planned from the first wireframe. It helps every user, not only people who rely on assistive technologies.

### Can you redesign our existing app?

Yes. We start with an audit of your current app and its App Store reviews, then propose a redesign that keeps what users like and fixes what frustrates them.

## Related services

[All services](https://develak.com/services/)

### [iOS app development](https://develak.com/services/ios-app-development/)

Native iPhone and iPad apps in Swift and SwiftUI, built end to end and released on the App Store.

### [MVP development](https://develak.com/services/mvp-app-development/)

A focused first version of your app, built natively to test your idea with real users on the App Store.

### [App Store Optimization](https://develak.com/services/app-store-optimization/)

Keyword research, titles, screenshots and localized metadata that help people find — and download — your app.

## Let’s design an app people love to use

Share your idea or your current app. We’ll tell you where design can make the biggest difference.

[Start a project](https://develak.com/contact/) [contact@develak.com](mailto:contact@develak.com)

---

*Markdown version of <https://develak.com/services/ios-app-design/> for AI assistants, published by Develak. Links lead to the web pages; add .md to a page URL for its Markdown version. Site index: <https://develak.com/llms.txt>.*