Mobile App Development

Cross-Platform App Development

Cross-platform app development builds one app that runs on both iPhone and Android from a single codebase, so you reach everyone for less.

  • 40+ projects delivered
  • 14 industries served
  • 9 countries
  • 100% code ownership
5 concrete deliverables, all owned by you
Timeline: 14 to 22 weeks for v1
Fixed price, agreed up front
Senior engineers - no juniors on your project
Adelaide, Australia - working worldwide
Get a quote

What it is

What you're actually getting.

Cross-platform mobile pays back when you respect its limits. We ship React Native and Flutter apps that feel native, perform near-native, and don't trap you in framework-specific debt.

Illustration of how XpansionIT builds and runs Cross-Platform App Development.

Who it's for

Is this the right fit for you?

This is a good fit when…

  • You want one team shipping both platforms but past cross-platform attempts felt cheap on iOS.
  • Performance on lower-end Android devices is killing engagement.
  • Native bridge code has accumulated and no one's sure what's still needed.

You probably don't need this yet if…

  • Your app needs deep, hardware-heavy features only native reaches well.
  • A mobile-friendly website would meet your need for now.

How it works

A clear path from first call to launch.

  1. Architecture for both

    We design module boundaries that map cleanly to both platforms. Native code is invoked deliberately, not by default.

  2. Platform feel

    iOS feels like iOS; Android feels like Android. Different transitions, different defaults, shared business logic.

  3. Performance budget

    Frame timing, cold-start, and memory budgets are locked per device class. We test on real low-end devices, not simulators.

Ready to get started with Cross-Platform App Development?

Tell us the shape of your problem. We'll reply within one business day with a serious read - not a sales pitch.

Illustration of the result XpansionIT delivers for Cross-Platform App Development.

What you gain

The outcomes that matter to your business.

  • One app on both iPhone and Android, built and updated together.
  • Lower cost than building and maintaining two separate apps.
  • Smooth App Store and Google Play releases, handled for you.

What's included, signed off.

  • One app that runs on both iPhone and Android

  • Native features added wherever each platform needs them

  • Automated building and releasing of the app

  • We handle getting it into the App Store and Google Play

  • Monitoring that catches crashes and slowdowns

The tools behind it

Built on proven, industry-standard technology.

These are our defaults for this work - the same tools trusted by companies worldwide. We swap any of them when your situation calls for something else.

  • React NativeReact Native
  • FlutterFlutter
  • TypeScriptTypeScript
  • FirebaseFirebase
  • ExpoExpo

Industry applications

Cross-Platform App Development for your industry.

  • Retail

    Loyalty and storefront apps with offline-friendly carts.

  • Health & fitness

    Tracking apps with device sync and reliable background updates.

  • Logistics

    Driver and field apps that keep working on a patchy connection.

  • Events

    Companion apps with real-time schedules and push notifications.

Why teams choose us

Senior engineers who have shipped this before.

No account managers, no offshore handoffs. You work directly with the people building your product - the same team from the first call to launch and beyond.

  • 40+

    projects delivered

  • 14

    industries served

  • 9

    countries

  • 100%

    code ownership

Where we work

Adelaide-based, working worldwide.

Adelaide, South Australia

We work from Adelaide, South Australia, with clients across nine countries. For Australian clients, we build to the Privacy Act 1988 (the national law governing how personal information is handled) and the Australian Privacy Principles, and we can host your data in Australian regions where data sovereignty matters. For global clients, we handle cross-border data carefully and align to the standards your market expects, such as GDPR. Wherever you are, you work directly with the senior engineers building your project.

How we engage

Fixed price, no surprises.

  • Fixed price

    Scoped and quoted up front, so you know the cost before we start.

  • 14 to 22 weeks for v1

    A clear timeline with something working to see along the way.

  • Senior team

    You work directly with experienced engineers, plus support after launch.

FAQ

Common questions, answered.

Still unsure? Ask us directly.

Last updated: 5 June 2026

Get In Touch

Ready to build something that works?

We take on a limited number of projects at a time so every client gets proper attention from start to finish. Whether you need a new SaaS platform, AI features added to your existing product, old software modernised, or a completely new system built from the ground up, we would like to hear about it.

xpansion.it@gmail.com

Encrypted communication available on request.