Cross-Platform Apps

Cross-platform app development for startups.

Cross-platform development helps founders ship to iOS and Android faster when the product logic can be shared and the first version needs speed, consistency, and maintainability.

When cross-platform is the right fit

Cross-platform works well when the core experience is product logic, content, data entry, dashboards, commerce, or structured workflows.

  • One shared product experience across iOS and Android
  • Faster iteration cycles after launch
  • Shared design system and component logic
  • Backend, auth, storage, and analytics integrations

What to be careful with

The build still needs native-quality product thinking. Cross-platform is not a shortcut around mobile UX, performance, or release constraints.

  • Push notifications and deep links
  • Offline states and sync behavior
  • Store review requirements
  • Platform-specific permissions and UX conventions

What we would prioritize first

We would map the first mobile loop, define the shared code boundaries, and make sure backend contracts support both platforms from day one.

  • Core app flow and onboarding
  • API contract and data model
  • Error, loading, and offline states
  • Release pipeline and analytics events

Cost and timeline for cross-platform

Cross-platform is usually the fastest path to both stores: one codebase, one team, from €7,000. Budget roughly 30–40% less than building two native apps, with TestFlight builds in 4–6 weeks.

  • From €7,000 — one React Native or Flutter codebase for both stores
  • Native modules added only where the platform demands it
  • 4–6 weeks to a testable build
  • 30-day post-launch support included

Practical answers

Questions founders ask before moving forward.

How much does it cost to work with One Peak?

MVP development starts at €7,000 for two core product features, with login, security, architecture, deployment, and 30 days of post-launch support included. UI/UX design and branding adds €2,000, and products with three or more features get a custom quote.

Who owns the code and accounts?

You do, from day one. The repository, cloud accounts, app store listings, and analytics all live under your ownership — there is no lock-in if you later hire in-house or switch teams.

What happens after launch?

Every build includes a 30-day post-launch window: we monitor errors and analytics, fix issues, and turn the first real usage into a prioritized iteration roadmap before handing over or continuing.

Is cross-platform good enough for a startup MVP?

Yes, when the product does not depend heavily on platform-specific hardware, graphics, capture, or OS-level behavior. It can be the fastest path to a credible first release.

Can a cross-platform app become native later?

Yes, but it is better to make that decision intentionally. If native constraints are likely, plan the architecture and backend boundaries early.

Related pages

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Next step

Decide if cross-platform fits your app.

Share the mobile product idea and we will map the first release, platform constraints, and backend scope.