Cross-platform mobile app development for iOS and Android.
Cross-platform is a staffing and delivery decision first, a framework decision second. Keep the product model shared, the platform details native, and the release path independent.
- Platforms supported
- iOS + Android
- For both apps
- One backlog
- Released together
- Two stores
- Code where needed
- Native
Overview
What Cross-Platform Apps has to solve.
A product that needs both stores without doubling the delivery team. The useful questions are about ownership, failure paths, and what the team can operate after launch.
What good looks like
One backlog, two stores Platform conventions survive A bug is fixed once Shared domain, native adapters Release paths stay independent
Choose the boundary before the framework
Cross-platform is often framed as a framework question. The more important question is what should be shared. Domain logic, validation, and data models are usually strong candidates. Navigation, permissions, and platform-specific interaction usually belong to each platform.
We map the boundary first, then choose the tool. That prevents the common failure where a shared interface slowly accumulates platform exceptions until the codebase is harder to maintain than two native apps.
- Shared domain and validation
- Native navigation and permissions
- Explicit adapters for device features
- A test strategy for both platforms
Two stores, two release paths
Apple and Google have different review processes, signing models, rollout controls, and policy requirements. A single release pipeline couples them at the worst possible moment.
We keep the pipelines independent, share the product backlog, and document the differences. A delay on one store should not block a fix on the other.
- Independent signing and submission
- Shared versioning policy
- Platform-specific test matrices
- Separate rollout and rollback controls
What a useful cross-platform brief should settle
A cross-platform brief should define which parts of the product must feel native and which can share a common model. That boundary matters more than the framework choice.
It should also name the release owners for both stores, the native modules the product depends on, and the team’s ability to maintain shared code. Portability is only valuable when the operating model is clear.
- Shared domain, design system, and platform-specific surfaces
- Native features and third-party modules
- Separate store accounts, signing, and release paths
- Testing, monitoring, and maintenance ownership
Why teams call us
What usually goes wrong.
These are the recurring problems behind a cross-platform apps brief. Naming them early changes the architecture, the estimate, and the launch plan.
The framework was chosen first
The team picked a tool before agreeing on the product, the team skills, or the maintenance budget. The consequences show up later.
Both platforms feel slightly wrong
A shared interface ignores navigation, permissions, and typography conventions. The app feels foreign on both stores.
One store blocks the other
A shared release process means an iOS review delay holds the Android release. The platforms need independent paths.
Native modules become a leak
Platform-specific code spreads through the codebase until the shared model is no longer shared.
Scope
What the project includes.
Every cross-platform apps project is scoped around a working system and the decisions that keep it healthy.
Framework and boundary decision
A documented choice between Flutter, React Native, Kotlin Multiplatform, or native, based on product and team constraints.
Shared domain and design system
A product model and component language that can be reused without pretending the platforms are identical.
Platform-specific adapters
Navigation, permissions, notifications, and device integrations implemented natively where users expect them.
Two release pipelines
Independent build, signing, store submission, and staged rollout paths for iOS and Android.
Device test matrix
Representative hardware and OS coverage for both platforms, including low-end Android devices.
Shared observability
Crash reporting, analytics, and performance monitoring that can be compared across platforms.
Use cases
Where this service helps most.
The same service looks different in each company. These are the situations where it matters most.
A startup needs both stores at launch
The audience is split across iOS and Android, and launching on one platform first would leave half the market waiting.
A shared product model with two store releases
A web team is moving into mobile
The team knows TypeScript and React, but the product needs native functionality at the edges.
React Native with isolated native modules
A native team wants less duplication
Two native codebases are drifting. The team wants to share domain logic without losing native interfaces.
Kotlin Multiplatform with native interfaces
Process
Four stages. Working software at every review.
Discovery leads to an architecture decision, a build with visible increments, and an operating model that stays after we leave.
What stays constant
One accountable lead, a working demo at each review, and documentation from the first release. Scope and risk set the plan, and we will say when a smaller project is the better answer.
- 01
Decide
Assess the product, team, performance needs, and release constraints. Choose the framework and the shared boundary.
Output: Framework decision, boundary map, delivery plan
- 02
Prototype
Test the riskiest shared and native interactions on both platforms before committing to the architecture.
Output: Prototype, performance baseline, architecture record
- 03
Build
Deliver the shared product model, platform adapters, and independent release pipelines in working increments.
Output: Test builds, store assets, shared component library
- 04
Release and maintain
Run both store releases, monitor platform-specific issues, and keep the shared boundary from leaking.
Output: Two live apps, monitoring, maintenance plan
Stack & standards
Chosen for durability.
Fewer moving parts, clear ownership, and a handover your engineers can defend. The stack follows the constraint.
Flutter
Shared rendering for custom interfaces
React Native
Shared TypeScript with native adapters
Kotlin Multiplatform
Shared domain logic with native UI
SwiftUI / Compose
Native platform interfaces
Bitrise
Independent build and release pipelines
How we choose
Flutter versus React Native
Flutter gives a consistent custom interface and one rendering model. React Native is a strong fit when the team already knows React and TypeScript. The decision is about the interface, the team, and the native boundary.
Kotlin Multiplatform versus shared UI
KMP shares logic while keeping native interfaces. Shared UI frameworks share more but can flatten platform conventions. Choose based on how much of the product is interface versus domain logic.
One release versus two
A single shared release process looks efficient and couples the platforms. Independent pipelines cost a little more and protect each store's release cadence.
Measured outcomes
“The app works in a basement loading dock. That sounds small until you have watched a dispatch team lose work to a dead tablet.”
FAQ
Questions we hear often.
The questions buyers ask before a cross-platform apps project. If yours is not here, ask it directly.
Ask an engineer01 Should we choose Flutter or React Native?
Choose Flutter when you need a highly custom, consistent interface and one rendering model. Choose React Native when the team knows React and TypeScript and the product benefits from a shared web and mobile skill set. We decide after mapping the product and native boundary.
02 Is Kotlin Multiplatform a good fit?
It is a strong fit when you want to share domain logic but keep native interfaces. It is less suitable if the team does not have Kotlin and Swift experience or if the product is mostly custom UI.
03 How much code can we share?
It depends on the boundary. Domain, validation, networking, and data models often share well. Navigation, permissions, and platform-specific UI usually should not be forced into a shared layer.
04 How do you keep platform-specific behaviour consistent?
We share the domain model and design tokens, then keep navigation, permissions, and native modules behind explicit platform adapters. The shared layer owns business rules; each platform owns the behaviour users expect.
05 Can you take over a stalled cross-platform project?
Yes. We audit the shared boundary, native modules, build pipeline, and performance before recommending whether to stabilise or restructure.
Next step
What should be shared, and what should stay native?
Tell us about the product, the team, and the two-store constraint. A senior engineer will reply with a framework and boundary plan.
Scope a cross-platform app