Mobile App Development

Mobile UI/UX & Interaction Design

Touch-first mobile interfaces with fluid transitions and respect for platform conventions.

Timeline
8–14 weeks
Engagement
Senior, embedded
Pricing
Outcome-based
Discipline
Mobile App Development

⏚ Summary

What this engagement is, plainly.

Mobile UX is its own discipline — different from web in cognitive load, input model, and platform expectations. We design mobile interfaces that respect Apple HIG and Material Design while still feeling unmistakably yours.

Problems we solve

  • Your app works on mobile but feels like a shrunken website.

  • Touch targets, transitions, and gestures feel off, and users are bouncing.

  • Design specs from web don't translate, and your designers don't have deep mobile experience.

⏚ Approach

How we run this engagement.

  1. 01Phase

    Platform conventions as a baseline

    iOS HIG and Material Design as starting points, deviated from deliberately when brand differentiation earns it.

  2. 02Phase

    Motion as language

    Transitions communicate hierarchy, state, and continuity. We design motion as a system, not as decoration.

  3. 03Phase

    Real-device testing

    Tested on the smallest target hardware up. Touch ergonomics, one-hand reach, and thumb zones designed for the people who'll use it.

⏚ Deliverables

What you get, signed off.

  • Mobile design system (iOS + Android variants)

  • Interaction + motion guidelines

  • Component library (designed + implemented)

  • Accessibility audit (VoiceOver, TalkBack)

  • Real-device validation report

⏚ Stack we typically use

Tools, not religion.

We pick on workload and team shape, not on fashion. Anything below is a default — swappable when your context demands.

  • Figma
  • Lottie
  • Rive
  • Reanimated
  • SwiftUI
  • Compose

Outcome

A mobile experience that respects the platform, feels yours, and works under thumb on the cheap Android phone your customer actually owns.

⏚ Frequently Asked

About this service, specifically.

⏚ Engagement Initiation

Have a hard problem worth doing once, well?

We take a small number of engagements per quarter. If your program needs serious operators, we'd like to hear about it.

Start a Projecthello@xpansionit.com

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