Mobile App Design Services
We design mobile apps people keep on their home screen — flows, screens, and a UI system for iOS and Android, shipped in 3–5 weeks at a price published before you ever talk to us.
An app UI that leaks users
Three patterns we see in almost every app that comes to us for a redesign. Each one is invisible in a sprint review and obvious in the retention curve.
The store reviews mention “confusing”
Users do not file UX bug reports — they leave a 2-star review that says “hard to use” and uninstall. By the time design debt shows up in the store rating, it has been costing installs for months.
Screens from three different eras
Every sprint added a screen, nobody owned the system, and now onboarding looks like 2021, settings like 2023, and the new feature like a different app. Users feel the seams even when they cannot name them.
Web habits on a touch screen
Hover states that do not exist on a phone, tap targets sized for a cursor, navigation copied from the web app. The product works — technically — but it fights the thumb on every screen.
Mobile app UI/UX design — iOS & Android
One system, two platforms, engineering-ready. Every artefact below is part of the standard scope.
User flows
Onboarding, the core loop, notifications, and the upgrade moment — mapped before any UI exists, so the screens serve the journey instead of decorating it.
Core screens
Every primary surface designed at full fidelity — home, detail, create, profile, settings — plus the states between: loading, empty, error, offline.
UI system & tokens
Colour, type scale, spacing, radius, and components as design tokens — one source of truth that holds both platforms together without flattening them into sameness.
Platform-true patterns
iOS follows the Human Interface Guidelines, Android follows Material 3 — navigation, gestures, and system components where users expect them, custom only where it earns its keep.
Clickable prototype
A tappable Figma prototype of the core flows — for user tests, investor demos, and the app-store preview video, before a line of code is written.
Dev-ready handoff
Auto-layout, variables, named components, documented states — reviewed by the engineer on our team first. Your developers build from it on day one.
Why mobile is its own discipline
A mobile app is not a small website. It lives on a 6-inch screen, gets used in 40-second bursts on a train, competes with every other icon on the home screen, and gets judged in a store with public ratings. The design constraints are physical: thumb reach, glare, one-handed use, interrupted sessions.
Platform conventions are not optional taste — they are muscle memory your users already paid for. An iOS user expects the back swipe; an Android user expects the system back gesture; both uninstall apps that fight them. We design with the grain of each platform and spend the custom-design budget where it differentiates — the core loop, not the settings screen.
- Touch-first ergonomics. Primary actions in thumb reach, tap targets at 44pt minimum, gestures that match the platform.
- HIG and Material 3, fluently. System components where users expect them — custom UI only where the product earns it.
- Store-context aware. Screens designed knowing they will be screenshots in a store listing competing for the install.
- Offline, interrupted, real. Designed for the subway, not the boardroom demo — every flow survives a lost connection and a 30-second attention span.
How the engagement runs
A predictable 3–5 week shape, scope and price fixed before kickoff. An MVP brief sits at the lower bound; a multi-tab consumer app at the upper.
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1
Research & flows (week 1)
Product walkthrough, store-review mining, competitor teardown, and the user flows that matter — mapped and signed off before any UI.
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2
Core screens (week 2)
The primary surfaces at full fidelity, platform conventions argued out loud. Daily Loom walkthroughs — no Friday surprise reveals.
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3
System & prototype (weeks 3-4)
Tokenised UI system across both platforms, every state designed, and a clickable prototype of the core loop for testing and demos.
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4
Handoff (final week)
Engineer-reviewed Figma, token files, and a 60-min walkthrough with your dev team. Two weeks of free async support after delivery.
Recent app work
A small selection — the rest lives on the portfolio page.
More case studies on our portfolio page.
Frequently asked
Five questions we hear in nearly every founder call. If yours is not here, send it via the booking form — the answer is usually one paragraph.
- Q01 How much does it cost to design an app?
- The published range is $10k–$40k — the lower bound is a clean MVP brief, the upper bound a multi-tab consumer app with a custom design system. The exact number is fixed after a 30-minute scope call and does not move unless the scope does. The full range lives on our pricing page — no quote wall, no discovery-call paywall.
- Q02 How long does it take to design an app?
- Three to five working weeks, fixed scope: research and flows in week one, core screens in week two, the UI system and clickable prototype in weeks three to four, and an engineer-reviewed handoff in the final week. An MVP brief lands at the short end; a multi-tab consumer app at the long end.
- Q03 Do you design for both iOS and Android?
- Yes — one design system, two platforms. iOS follows the Human Interface Guidelines, Android follows Material 3, and shared design tokens hold the brand together across both. Platform-specific where users expect it (navigation, gestures, system components), shared where it saves your engineering team time.
- Q04 Can you redesign an existing app?
- Yes — redesigns of live apps are the majority of our mobile work. The discipline is keeping the habits of your existing users intact while fixing what leaks: see the app redesign case study for exactly that shape of engagement. Not sure the design is the problem? Send the store link — the free 15-minute audit will tell you.
- Q05 Should we follow native platform design or build a custom design system?
- Short version: follow the platform for structure (navigation, gestures, system patterns) and customise where your brand earns attention (the core loop, data visualisation, moments of delight). Small teams that go fully custom inherit a maintenance bill; teams that stay fully native look generic. The right mix depends on team size and brand maturity — we make that call with you in week one.
Ready to make your SaaS impossible to ignore?
Thirty minutes, no slides. We will look at your current identity together, name the gaps, and tell you whether a five-week engagement is the right call.