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Cross-platform app development

When the same application has to reach staff and customers on both platforms, a shared codebase gets you there in one project rather than two. It suits form-driven, data-driven and workflow applications where the interface matters more than deep platform-specific hardware access.

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Abstract geometric illustration of two intersecting frames sharing a common central block

What this involves

We are candid about when this approach fits and when it does not, and that judgement is part of the discovery session rather than something decided by a sales conversation. Where it fits, one team builds one codebase, releases to both stores and maintains a single set of business logic, which keeps later change requests considerably cheaper. Development runs in cycles with builds distributed to your testers on both platforms at the same time. We handle both store submissions, each with its own privacy and rating requirements, and hand over a repository your team or a future supplier can pick up without specialist knowledge of an in-house framework.

What’s included

  • Assessment of whether a shared codebase is the right choice for your product
  • Written specification, screen inventory and delivery estimate
  • Interface design that respects the conventions of both platforms
  • Development in Flutter or React Native with shared business logic
  • Platform-specific code where a feature genuinely requires it
  • Integration with your existing systems through documented APIs
  • Test builds distributed to iOS and Android testers together
  • Submission to both the App Store and Google Play

Deliverables

  • Single source repository covering both platforms
  • Signed release builds for iOS and Android
  • Design files for every screen
  • Technical documentation and API reference
  • Store listing assets for both platforms
  • Handover session with your technical contact

Technologies

  • Flutter
  • Dart
  • React Native
  • TypeScript
  • Firebase
  • REST and GraphQL APIs
  • Fastlane

Timelines and pricing

Timelines and pricing are quoted per project after a discovery call. The estimate follows the discovery call and covers the scope, the stages and the payment schedule, so there is nothing to sign before you have seen it in writing.

Questions about cross-platform app development

Will a cross-platform app feel slower than a native one?

For the kind of applications businesses commission — forms, lists, dashboards, scheduling, stock and reporting — the difference is not something users notice. It becomes noticeable in graphics-heavy products, continuous camera processing and games. If your product falls into that group we will say so and recommend native development instead.

Can we start cross-platform and move to native later?

Yes, and the way the project is structured makes that easier. We keep business rules and API handling separate from the interface layer, so a later native build reuses the specification, the design and the server-side work rather than starting from nothing.

Does one codebase mean one store submission?

No. Apple and Google review independently, each with its own listing, privacy declaration and rating questionnaire. The build is shared; the release process is done twice, and both are included in the project.

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Send the details of your project and we will reply with questions and a suggested next step.

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Enquire about cross-platform app development

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For example: start in six weeks, launch before the new financial year.
Tell us what the app needs to do and who will use it.

Documents and existing specifications can be sent to [email protected]. We reply to every enquiry.

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