Cross-Platform Mobile Apps

Cross-platform mobile development with React Native or Flutter — choosing the right framework for the project's needs. React Native for teams with web JavaScript expertise; Flutter for pixel-perfect custom UI. Both deliver near-native performance with a single shared codebase.

• Framework selection based on project requirements and team context
• React Native: JavaScript/TypeScript, shared logic with web codebase
• Flutter: Dart, consistent pixel-perfect UI across platforms
• Platform-specific code modules where native APIs require them
• Expo workflow for React Native: faster iteration and OTA updates
• Code sharing between mobile and web for business logic
• TypeScript throughout for type safety and maintainability
• CI/CD pipeline for both iOS and Android build automation

App store submission, review preparation and deployment for both Apple App Store and Google Play — handling signing certificates, store listing preparation, screenshot production and compliance documentation so the app passes review on first submission.

• Apple Developer Program setup and certificate management
• Google Play Console setup and app signing
• App store listing: screenshots, description, keywords
• Privacy policy and data handling declarations for store compliance
• App Store Connect and Play Console submission management
• Beta testing via TestFlight (iOS) and internal track (Android)
• Review guideline compliance check before submission
• Version management and staged rollout

Offline-first mobile architecture for apps that must work without a network connection — field service apps, warehouse apps, inspection tools — with local data storage, background sync when connectivity returns and conflict resolution for data modified offline.

• Offline data store using SQLite, WatermelonDB or Realm
• Background sync queue: changes made offline queued for upload
• Conflict resolution strategy for concurrent edits
• Connectivity detection and state indication to user
• Read-only offline mode for apps that cannot write offline safely
• Selective sync: only sync the data each user needs
• Sync status display: last synced, pending uploads, errors
• Sync error handling: retry logic and failure notification

Push notification implementation via Firebase Cloud Messaging (FCM) for Android and APNs for iOS — letting the app send alerts, reminders and updates to users even when the app is closed, with deep link routing to the relevant screen on tap.

• Firebase Cloud Messaging (FCM) and APNs setup
• Permission request flow with contextual explanation
• Notification categories: transactional, marketing, system alerts
• Deep link on notification tap: open correct in-app screen
• Notification preference management in-app settings
• Segmented push: send to specific user groups
• Rich notifications: image, actions and expanded content
• Delivery and open rate analytics per notification

Native device feature integration — camera, GPS, biometric authentication, barcode scanner, NFC and contacts — letting the app leverage phone hardware to deliver experiences only possible on mobile. Each integration handled with proper permission flows and fallbacks.

• Camera integration: photo capture, document scan, QR/barcode reader
• GPS and location services: current location, geofencing
• Biometric authentication: Face ID, Touch ID, fingerprint
• NFC read for tag scanning and contactless data exchange
• File system access: document download and management
• Calendar and contacts integration
• Permission request flow with purpose explanation
• Graceful fallback when permission denied

Mobile app performance optimisation — reducing startup time, eliminating jank in scrolling and animations, optimising memory usage and minimising battery drain. Performance-tested on mid-range Android devices to ensure the app feels fast for all users, not just those with the latest phone.

• Cold and warm startup time profiling and optimisation
• List and scroll performance: FlatList optimisation, virtualisation
• Image optimisation: correct format, progressive loading, caching
• Bundle size reduction: code splitting and tree shaking
• Memory leak detection and resolution
• Background task optimisation to reduce battery impact
• Hermes JavaScript engine for React Native performance
• Performance testing on representative low-end Android devices