Mobile App Development

Native iOS & Android Engineering

Swift and Kotlin apps optimized for native hardware, fluid system animations, and platform-specific feel.

Timeline
16–26 weeks for v1 on both platforms
Engagement
Senior, embedded
Pricing
Outcome-based
Discipline
Mobile App Development
Brief usSee approach

⏚ Summary

What this engagement is, plainly.

Native is the right choice when performance, hardware integration, or platform-specific feel are not negotiable. We ship Swift and Kotlin apps that earn the choice.

Problems we solve

  • You need hardware capabilities (camera, sensors, ARKit, BLE) that cross-platform doesn't reach well.

  • Performance and frame timing requirements rule out a JavaScript runtime.

  • Your brand demands platform-specific feel — Cupertino on iOS, Material on Android.

⏚ Approach

How we run this engagement.

  1. 01Phase

    Two teams, one product

    Senior iOS and Android engineers working in parallel, with shared design and product. Code is platform-idiomatic; product behavior is platform-aware.

  2. 02Phase

    Modern stacks

    Swift, SwiftUI, modern Concurrency on iOS. Kotlin, Compose, Coroutines on Android. We don't ship 2018 patterns.

  3. 03Phase

    Performance discipline

    Frame timing, memory, and battery budgets locked per device class. Instruments and Profiler are daily tools.

⏚ Deliverables

What you get, signed off.

  • Swift / SwiftUI iOS app

  • Kotlin / Compose Android app

  • Shared product spec + design system

  • CI/CD per platform (Xcode Cloud, EAS, Bitrise)

  • Store submission + review handling

⏚ 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.

  • Swift
  • SwiftUI
  • Kotlin
  • Jetpack Compose
  • Combine
  • Coroutines

Outcome

Two apps that feel native on their respective platforms, perform on real hardware, and integrate with platform capabilities cross-platform can't reach.

⏚ Frequently Asked

About this service, specifically.

⏚ Related Services

Often paired with this engagement.

⏚ 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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