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Service details

Mobile App Development

We build native and cross-platform mobile applications for iOS and Android that users actually enjoy. From MVP validation to full-featured consumer apps and enterprise tools, we cover the entire product lifecycle.

Our mobile team combines strong engineering with UX sensibility — because beautiful code that ships a poor experience is a failed product.

What’s included

  • iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose) native development
  • Cross-platform development with React Native or Flutter
  • UI/UX design and prototyping
  • Backend API integration and offline-first architecture
  • Push notifications, analytics, and in-app purchases
  • App Store & Google Play submission and compliance
  • Post-launch monitoring and iteration

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Use cases

  • Launch a consumer app from zero to App Store in 8–12 weeks
  • Add a mobile companion to an existing web platform
  • Build enterprise tools for field teams with offline capability
  • Create health & fitness or fintech apps with strict compliance requirements
  • Modernize a legacy mobile app with updated UX and performance

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Tech stack

  • Swift, SwiftUI (iOS)
  • Kotlin, Jetpack Compose (Android)
  • React Native, Expo
  • Flutter, Dart
  • Firebase, Supabase, AWS Amplify

What our clients say

“Crossline built our mobile app from scratch — App Store approved on first submission.”

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“Crossline delivered a polished, performant app that our users love. The attention to UX detail and the speed of delivery were both outstanding.”

Priya Sharma

Product Lead at Pulse Health

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