Cross-Platform App Development
Cross-platform app development covers building one app that runs on both Android and iOS from a largely shared codebase, using a framework like Flutter or React Native, instead of maintaining two separate native codebases. At Beacon Coders this page's job is different from our other mobile pages: it exists to help you decide between native, Flutter, React Native, and — for some projects — a progressive web app, based on your actual feature list rather than whichever framework we prefer. Build engagements start at ₹3,00,000 / $3,600 and typically run 10 to 16 weeks once the framework decision is made.
The decision, honestly
If your budget or timeline cannot support two native codebases and your feature list does not depend on brand-new platform-specific capabilities, cross-platform is very likely the right call — this is true for most business apps, most MVPs, and most internal tools. Between Flutter and React Native specifically: choose Flutter if visual consistency across platforms matters more than a native look, or if your team has no strong existing framework preference. Choose React Native if your team already works in React on the web and you want to share logic and language, or if you want UI that leans on real native components rather than a rendered layer.
Choose native — Android or iOS — instead of cross-platform when your app depends heavily on features that need day-one access to new OS capabilities, when performance on the lowest-end devices in your market is a hard requirement that a cross-platform bridge could jeopardise, or when your user base is overwhelmingly concentrated on one platform and there is no near-term need for the other. Building both natively when your budget realistically supports one well-built cross-platform app is a common and expensive mistake; so is choosing cross-platform for an app that needs deep, continuous access to bleeding-edge platform features.
For some projects, the honest answer is neither. If your app is mostly content display, a form, or a dashboard with no offline requirement, camera access, or push-notification dependency, a responsive web app under web development may serve your users just as well for a fraction of the cost and with no store review process at all. We will say so during discovery rather than scope a mobile app you do not need.
What's included in cross-platform strategy and build
A framework decision session that maps your feature list against Flutter, React Native, native, and web, with the trade-offs stated plainly rather than defaulting to a house preference
A framework decision session that maps your feature list against Flutter, React Native, native, and web, with the trade-offs stated plainly rather than defaulting to a house preference
A device and platform audit of your actual or expected user base, where analytics exist, to ground the decision in real data rather than assumption
A device and platform audit of your actual or expected user base, where analytics exist, to ground the decision in real data rather than assumption
Architecture planning for shared code versus platform-specific modules, so the build starts with a clear map rather than discovering the split mid-sprint
Architecture planning for shared code versus platform-specific modules, so the build starts with a clear map rather than discovering the split mid-sprint
Full build in the chosen framework, following the same process as our dedicated Flutter and React Native pages
Full build in the chosen framework, following the same process as our dedicated Flutter and React Native pages
Native module development for any feature the chosen framework cannot support natively, scoped explicitly rather than forced into a poor JavaScript or Dart workaround
Native module development for any feature the chosen framework cannot support natively, scoped explicitly rather than forced into a poor JavaScript or Dart workaround
Testing across a real device matrix for both Android and iOS
Testing across a real device matrix for both Android and iOS
Store submission for both platforms, managed directly
Store submission for both platforms, managed directly
A post-launch support agreement covering both platforms under one retainer
A post-launch support agreement covering both platforms under one retainer
What's not included
This page does not include committing you to a specific framework before the decision session — that would defeat its purpose. It does not cover a from-scratch native build for a single platform only, which is scoped directly under Android or iOS development. It does not include marketing website builds or app store advertising (see digital marketing). And if the framework decision is already made and you simply need capacity added to an existing codebase, see hire Flutter developers or hire React Native developers rather than a new build engagement.
Frequently asked questions
The decision session itself is typically folded into discovery at no separate charge when paired with a build. The build starts at ₹3,00,000 / $3,600 and runs 10 to 16 weeks, similar to a dedicated Flutter or React Native engagement, since the framework choice affects the process more than the price. What moves the price: screen count, native module requirements, and integration depth. Full engagement models are on the pricing page.
We weigh your team's existing skills, your visual design requirements, and how much native-feeling UI polish the project needs against launch timeline. Teams with React experience and a preference for components closer to native platform behaviour usually lean React Native; teams without a strong preference, or projects prioritising exact visual consistency across platforms, usually lean Flutter. We put this in writing before the build starts, with the reasoning stated, not just the recommendation.
Almost always, since most of the code and testing effort is shared rather than duplicated. The saving narrows for apps that need heavy platform-specific functionality, where a cross-platform team spends real time working around framework limitations that native development would not encounter. We quote both approaches when the choice is genuinely close, so you see the actual numbers rather than take a general rule on faith.
For the large majority of business apps — forms, lists, navigation, data display, moderate offline use — yes, users cannot tell the difference. For apps with heavy animation, real-time graphics, or processing-intensive features, native usually still has an edge, though the gap has narrowed significantly in recent years. We flag this specifically during the decision session if your feature list includes performance-sensitive functionality.
We architect cross-platform builds to support native modules from the start, specifically so a future native-only requirement does not force a rebuild. The module gets written in Kotlin or Swift and bridged into the shared codebase, which is a scoped addition rather than a sign the original choice was wrong.
Often, yes, and we will tell you if your feature list points that way. If your app does not need offline access, push notifications, camera or location access, or a home-screen presence users check daily, a responsive web build under web development usually reaches your users just as effectively without app store submission, review delays, or two platforms to maintain.
How we run the decision process
Discovery here starts with your feature list and target market rather than a framework preference, since the honest answer depends entirely on specifics — team background, budget, timeline, and which native capabilities the app genuinely needs. This sits inside the same discovery stage behind every mobile app development project, extended with a structured comparison document you can review before committing budget to a build. Once the framework is chosen, the build follows the standard two-week sprint cadence, tested against real devices on both platforms throughout.