Cross-Platform Development

React Native and Flutter enable true cross-platform development, a single codebase that delivers native-quality experiences on iOS and Android. We choose the right framework for your requirements and build it without compromises.

React Native and Flutter expertise

We build in both React Native (JavaScript/TypeScript) and Flutter (Dart). Framework selection is driven by your team composition, design requirements, and performance needs.

Near-native performance

Modern React Native with the new architecture and Flutter with Skia/Impeller render at native frame rates. We optimise from architecture through to animation and list performance.

Platform-specific adapters

Where platform conventions differ critically, we implement platform-specific code modules, navigation patterns, permission flows, platform APIs, as thin adapters within the shared codebase.

Cross-platform development has matured dramatically. React Native's new architecture and Flutter's rendering engine deliver experiences that are genuinely indistinguishable from native for most use cases.

The right framework depends on your context: React Native if you have JavaScript engineering teams; Flutter if you need pixel-perfect rendering control or are starting fresh. We advise based on your specific situation, not a framework preference.

What this includes

  • React Native (TypeScript) or Flutter (Dart)
  • Expo-managed or bare React Native workflow
  • State management (Redux Toolkit, Zustand, or Riverpod)
  • Navigation (React Navigation or GoRouter)
  • Native module integration where required
  • iOS and Android store submission
  • OTA updates (Expo EAS or CodePush)

Every engagement produces clear, documented deliverables. Here is exactly what is included in our cross-platform development service.

Production patterns and experience depth: React Native expertise ›

01Cross-platform application (React Native or Flutter)
02Shared codebase with platform adapters
03iOS App Store and Google Play submission
04CI/CD pipeline for both platforms
05OTA update capability (optional)
06Test suite and engineering documentation

React Native (Expo or bare) vs Flutter is chosen against native module needs, team skill, and App Store review constraints — documented in a one-page ADR. Shared design tokens sync from Figma; platform-specific navigation follows Material on Android and HIG on iOS where users expect it. Detox or Maestro E2E covers login and checkout paths on both platforms in CI.

Frontend

Next.js App RouterReact 18+Tailwind CSSCore Web Vitals tuning

Backend & data

Node.js / Python APIsPostgreSQLRedis cachingREST & GraphQL

Operations

CI/CD pipelinesDocker / KubernetesObservabilitySecurity hardening

01

Architecture mapping

Dependencies, API contracts, compliance constraints, and performance budgets documented before sprint one.

02

Secure sprints

Two-week increments with GitHub access, demo recordings, and QA checkpoints, client visibility at every stage.

03

QA & handover

Automated tests on critical paths, security review, runbooks, and knowledge transfer to your team.

Facilities management company

Challenge
Paper checklists and silent upload failures in low-connectivity plants.
Simplileap solution
React Native offline queue, WatermelonDB, and idempotent sync API.
Outcome
99.2% submissions synced within 24 hours.

Currency

Package

Mobile app (iOS / Android)

Ideal for

Product teams

Investment

₹6L – ₹18L

Includes

  • React Native or native
  • UX + development
  • App Store submission
  • Up to 10 screens

Package

Product MVP

Ideal for

Startups

Investment

₹8L – ₹25L

Includes

  • Discovery
  • Web + mobile + API
  • CI/CD
  • Launch support

Package

API & integration layer

Ideal for

Enterprise

Investment

Squad retainer

Includes

  • Typed APIs
  • Third-party sync
  • Observability
  • Documentation
Harsha ParthasarathyKeshav Sharma

Company and Service positioning is reviewed for production delivery standards by Harsha Parthasarathy (Co-Founder, Strategy & Operations 24+ years IT veteran, IBM, Global Delivery, Program Management) and Keshav Sharma (Co-Founder, Engineering and Lead Architect, Full-stack engineering, product delivery and technical standards).

Verified entity

Simplileap Digital LLP

LLPIN

AAU-8582

Startup India

DIPP83124Karnataka Startup

Founded

November 2020

Office

Residency Rd, Bengaluru, India

Common questions about cross-platform development

Neither is universally better. React Native suits JavaScript teams, JavaScript ecosystem libraries, and OTA update requirements. Flutter suits teams starting fresh, pixel-perfect design requirements, and Dart-comfortable teams. We discuss your specific context before recommending.

Yes, native modules and platform channels enable access to any native API. For common integrations (camera, biometrics, location, push notifications), well-maintained community packages exist for both frameworks.

Ready to get started with cross-platform development?

Share your requirements with our team. We respond within one business day with a clear plan from discovery to delivery.