Mobile Applications

Cross-Platform App Development

One codebase for both iOS and Android — faster releases, a single team and one set of updates — built with React Native or Flutter so it still looks and feels native on each platform.

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Illustrative example

Cross-Platform App Development: the overview

Building and maintaining two separate native apps is heavy work: two codebases, two teams, and every feature done twice. For most business apps, cross-platform development gives you both iOS and Android from one codebase — faster releases, one team and less to maintain — while still delivering a native look and feel through frameworks like React Native and Flutter.

We build around your goal and connect the app to your existing systems, sharing most of the code across platforms while dropping to native where a specific feature demands it. You get one roadmap and one set of updates that ship to both stores together, instead of iOS and Android drifting apart.

The result is broad reach from a single build, delivered in sprints you review on both platforms. The source code transfers to you on full payment, so the app is a lasting, extensible asset — and if you ever need to go fully native on one platform, the shared logic and designs still serve you.

Illustrative example

What Cross-Platform App Development includes

One Codebase, Both Stores

React Native or Flutter covering iOS and Android from a single codebase; see our comparison of Flutter and React Native.

Native Look & Feel

Platform-appropriate UX so it doesn’t feel like a stretched website.

Business System Integration

Connected to your ERP, CRM, ordering or operations systems through their APIs for current data.

Device Features

Camera, GPS, notifications, payments and more, with native modules where needed.

Cross-Device QA

Testing across iPhone, iPad and Android devices before release.

Store Submission (both)

App Store and Google Play listings, submission and releases from your developer accounts.

Who Cross-Platform App Development is built for

Businesses wanting both platforms

Reach iOS and Android users without building and maintaining two native apps.

Startups on a tight timeline

Ship to both stores sooner with one team and one codebase.

Internal & field apps

Equip mixed-device teams with one app that runs on both iOS and Android.

Products that update often

Ship features to both platforms at once instead of maintaining two apps.

Illustrative example

Is cross-platform app development the right choice?

A good fit when

  • You need the same features on iOS and Android and want one roadmap.
  • The app is mainly forms, lists, maps, payments and content rather than heavy graphics.
  • A small team will maintain the app after launch.
  • Releases need to reach both platforms at the same time.

Consider another option when

  • The app depends on heavy 3D graphics, advanced camera processing or the newest platform features as soon as they ship; native may suit better.
  • Almost all your users are on one platform; a single native app may be simpler, see Android or iOS development.
  • Your own team already maintains a native Swift or Kotlin app and will keep doing so.

Usually in a first release

  • One shared codebase in React Native or Flutter, chosen in the Select Technology step
  • Core journeys for one or two roles, tested on an agreed list of iPhone and Android devices
  • Login, backend or API connection and push notifications on both platforms
  • Test builds through TestFlight and Google Play testing tracks
  • Submission from your own store accounts. Apple and Google review every release; review time varies and approval is not guaranteed, so launch plans allow time for a resubmission

Outside the first release unless agreed

  • Native modules for hardware or third-party SDKs beyond those agreed
  • Tablet-optimized layouts, wearables or widgets unless agreed
  • A web version of the app
  • Building or changing backend systems unless listed in scope

Anything outside the approved scope is reviewed and agreed before work begins. See how we work.

Data, controls, responsibilities and ownership

Data migration and integrations

  • A connected app depends on an API from your backend, ERP or CRM. We confirm early whether it exists, what it exposes and who maintains it; if it needs building or changing, that is scoped separately.
  • Push notifications use APNs on iOS and Firebase Cloud Messaging on Android, set up in accounts owned by your organization.
  • Third-party SDKs (payments, maps, analytics) are checked for support in the chosen framework before they are committed to.
  • Offline storage and sync are shared across platforms, with conflict rules agreed for edits made offline.

Roles, approvals and audit

Roles and login
Customers, staff and admins see different screens and data, with login through your identity provider where needed.
Device security
Credentials in the platform’s secure storage, sensitive data encrypted, sessions that expire and remote sign-out.
Release control
Staged rollout on Google Play and phased release on the App Store, so a faulty update can be paused.
Server-side audit
Actions that change records are logged on the server with user, device and timestamp.

What we need from your team

  • Enrol Apple Developer and Google Play Console accounts in your organization’s name (both usually need a D-U-N-S number and verification) and invite us.
  • Provide access to the backend or APIs the app uses, and a test environment.
  • Name a product owner who tests builds on both an iPhone and an Android phone and approves releases.
  • Supply the privacy policy, support contact and store listing content for both stores.

Ownership, support and running costs

  • Project source code, designs and documentation transfer to you on full payment, and your data is yours throughout; see our IP and ownership policy.
  • The Apple Developer and Google Play Console accounts are set up in your organization’s name and the app is published under it. We work in them as invited team members, and signing certificates, keys and push credentials stay in your accounts and custody.
  • Running costs by category: Apple and Google developer account fees, push notification and messaging services (SMS, email), backend hosting and database, crash reporting and monitoring, and maintenance for yearly iOS and Android releases and store policy changes. Amounts depend on your usage and providers.
  • Framework upgrades (new React Native or Flutter versions) are part of ongoing maintenance alongside iOS and Android releases; see maintenance and support.

Related reading for this decision

How we work

How we deliver Cross-Platform App Development

Custom software built around the way your business works. Five steps, with a free pilot of 2 to 3 key modules before the full build.

  1. Step 1: Understand

    We learn how your business works.

    Your requirements, workflow, challenges and goals, understood before anything is recommended.

  2. Step 2: Plan

    We design the right solution around your workflow.

    Modules, workflows, roles, approvals, reports and integrations, agreed before development.

  3. Step 3: Select Technology

    Choose the right technical foundation.

    Technology options matched to your users, security, budget and growth, not one fixed stack.

  4. Free pilot

    Step 4: Pilot

    Test our work before full project development.

    Free. You choose 2 to 3 key modules and we build them first, so you can judge our work.

    The full project starts only after you approve the pilot.

  5. Full project

    Step 5: Build & Scale

    From approved pilot to complete digital system.

    Full development, testing, deployment, training and support, built to grow with you.

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FAQ

Cross-Platform App Development FAQ

For most business apps, yes — modern frameworks like React Native and Flutter deliver a native look, feel and performance. For apps that push graphics or platform-specific hardware to the limit, native can still be the better choice, and we will say so in the Select Technology step.

Yes. Because most of the code is shared, one update ships to iOS and Android together, and there is one codebase to maintain instead of two. How much is shared depends on how much platform-specific work your app needs, and each store still reviews the update separately.

Both are mature, widely used frameworks. We choose based on your app’s needs, your existing stack and team, and the libraries you depend on, and explain the trade-off before you approve it.

Yes. Cross-platform apps access camera, GPS, notifications, payments and other device features, and we drop to native modules where a specific capability requires it.

Yes. We handle both listings, submissions and releases from developer accounts in your organization’s name. Apple and Google each review every release, review time varies and approval is not guaranteed, so launch plans allow time for a resubmission on either store.

Project source code for the shared codebase and any native modules, plus designs and documentation, transfer to you on full payment, and your data is yours from day one. The app is published from developer accounts in your organization’s name. Open-source framework components stay under their own licences, as our IP and ownership policy sets out.

Free pilot

See working software before you commit

Before you commit to the full project, we build 2 to 3 of your key modules as working software, free of charge. Your team tests the pilot, and the full build starts only after you approve it.

See how the free pilot works

  1. Understand

    We learn your requirements and how your organisation works today.

  2. Select pilot modules

    Together we choose 2 to 3 key modules that prove the solution.

  3. Build the working pilot

    We build those modules as real, working software, free of charge.

  4. You test it

    Your team uses the pilot. The full project starts only after you approve it.

Start a conversation

Tell us how your business works.

Describe what is slowing your team down. We will help you work out what to build, and how a free pilot lets you judge our work before the full project.

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What happens next

  1. You send a short brief

    The problem, the people involved and any target date. A senior engineer replies within 4 business hours.

  2. We understand your workflow

    A first call about how your business works today. An NDA can be signed before you share details.

  3. You test a free pilot

    You choose 2 to 3 key modules and we build them first, so you judge real software before the full project.