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Mobile App Development Services Built on a Stack That Fits

From Swift and Kotlin native builds to Flutter and React Native, we match the approach to your performance requirements and maintenance reality.
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Trusted and top rated tech team

When your mobile app is holding the product back

A slow app loses users before they convert. An app built on the wrong framework costs twice: once to build and once to rebuild when performance or platform requirements change. Flutter and React Native handle the majority of use cases. Swift and SwiftUI when deep Apple ecosystem integration matters. Kotlin with Jetpack Compose when Android performance is the priority. 

 

Curotec builds on the stack that fits your product, your users, and your team’s ability to maintain it.

Our capabilities include:

  • Native iOS development with Swift and SwiftUI
  • Native Android development with Kotlin and Jetpack Compose
  • Cross-platform development with Flutter and React Native
  • AI feature development and on-device ML integration
  • Mobile backend development and API integration
  • Release management and deployment pipeline automation

Who we work with

Curotec works with product teams and engineering leaders at every stage of mobile development, from first builds to rebuilds to AI feature integration on apps already in production.

Product Teams Building Their First App

You have a product concept and need to choose between native and cross-platform before writing a line of code. The wrong decision here costs months of rework later. You need engineers who can evaluate your performance requirements, user base, and team structure and recommend the right stack before the build starts.

Engineering Teams Rebuilding a Failing App

Your app ships but performance is poor, the codebase is hard to maintain, and the framework choice made two years ago is now limiting what you can build. You need engineers who can audit what's there, identify what's worth keeping, and rebuild the parts that can't support where the product needs to go.

Companies Adding AI to Mobile Products

Your app works but competitors are shipping on-device AI features, voice interfaces, and personalized experiences your current architecture wasn't built to support. You need engineers who can integrate LLM APIs, on-device ML models, and agentic workflows into your existing mobile codebase without a full rebuild.

Ways to engage

We offer a wide range of engagement models to meet our clients’ needs. From hourly consultation to fully managed solutions, our engagement models are designed to be flexible and customizable.

Staff Augmentation

Get access to on-demand product and engineering team talent that gives your company the flexibility to scale up and down as business needs ebb and flow.

Retainer Services

Retainers are perfect for companies that have a fully built product in maintenance mode. We'll give you peace of mind by keeping your software running, secure, and up to date.

Project Engagement

Project-based contracts that can range from small-scale audit and strategy sessions to more intricate replatforming or build from scratch initiatives.

Schedule consultation

We'll spec out a custom engagement model for you

Why choose Curotec for mobile apps?

Partner with Curotec for an exceptional team with deep technical expertise, flexibility, and a proven track record when it comes to mobile product development.

1

Extraordinary people, exceptional outcomes

Our outstanding team represents our greatest asset. With business acumen, we translate objectives into solutions. Intellectual agility drives efficient software development problem-solving. Superior communication ensures seamless teamwork integration. 

2

Deep technical expertise

We don’t claim to be experts in every framework and language. Instead, we focus on the tech ecosystems in which we excel, selecting engagements that align with our competencies for optimal results. Moreover, we offer pre-developed components and scaffolding to save you time and money.

3

Balancing innovation with practicality

We stay ahead of industry trends and innovations, avoiding the hype of every new technology fad. Focusing on innovations with real commercial potential, we guide you through the ever-changing tech landscape, helping you embrace proven technologies and cutting-edge advancements.

4

Flexibility in our approach

We offer a range of flexible working arrangements to meet your specific needs. Whether you prefer our end-to-end project delivery, embedding our experts within your teams, or consulting and retainer options, we have a solution designed to suit you.

How we approach mobile development

Platform Selection

Match your performance requirements, user base, and maintenance reality to the right platform before a line of code gets written.

Performance Architecture

Build lightweight apps with clean architecture patterns so performance holds up as feature complexity and user volume grow.

AI and On-Device ML

Integrate LLM APIs and on-device ML models into your existing mobile codebase without a full rebuild or separate AI infrastructure.

Offline and Edge Capability

Design offline-first apps with local storage and background sync so core features remain functional without a reliable connection.

Security and Privacy

Build on-device data processing and encrypted local storage into the architecture so sensitive user data stays local from day one.

App Store Optimization

Optimize metadata and screenshots so your app ranks in App Store and Google Play search and clears review without submission delays.

Technologies we use to build mobile apps

iOS Development

Our engineers build iOS apps with Swift and SwiftUI for products requiring deep Apple ecosystem integration and native performance.

  • Swift – Apple’s primary programming language for iOS, macOS, and watchOS development with type safety, performance, and modern concurrency built in
  • SwiftUI – Apple’s declarative UI framework for building native interfaces across iOS, macOS, and watchOS with live previews and cross-platform code sharing
  • UIKit – Apple’s imperative UI framework for legacy iOS codebases and complex custom interface components requiring fine-grained control over rendering
  • Xcode – Apple’s IDE for iOS development with integrated simulator, Instruments profiler, and App Store Connect submission tooling
  • Core Data – Apple’s persistence framework for local data storage, offline capability, and CloudKit sync in iOS applications
  • WidgetKit – Apple’s framework for building home screen and lock screen widgets that surface app content without requiring the user to open the app

Android Development

Curotec builds Android apps with Kotlin and Jetpack Compose for products that need high performance and deep platform integration.

  • Kotlin – Google’s preferred language for Android development with null safety, coroutines for async work, and full Java interoperability
  • Jetpack Compose – Android’s modern declarative UI toolkit replacing XML layouts with composable functions for faster development and consistent interfaces
  • Android Jetpack – Suite of libraries including Room, Navigation, WorkManager, and ViewModel for building robust Android apps with less boilerplate
  • Room – Android’s SQLite abstraction library for local data persistence with compile-time query verification and LiveData integration
  • Android Studio – Google’s official IDE for Android development with layout editor, profiler, and Google Play submission tooling
  • Material Design 3 – Google’s design system for Android with dynamic color, adaptive layouts, and accessibility-compliant components built in

Cross-Platform Development

Our engineers build on Flutter and React Native for single-codebase iOS and Android apps without sacrificing native performance.

  • Flutter – Google’s cross-platform framework using Dart for high-performance iOS and Android apps with a single codebase and native-compiled rendering
  • React Native – Meta’s JavaScript framework for building native iOS and Android apps using React components with access to platform-specific APIs
  • Expo – Managed React Native toolchain with over-the-air updates, prebuild configuration, and simplified cross-platform App Store and Google Play submission workflows
  • Dart – Strongly typed language powering Flutter with ahead-of-time compilation for fast startup times and consistent performance across platforms
  • React Native Reanimated – High-performance animation library for React Native running animations on the UI thread for smooth 60fps interactions
  • FlutterFlow – Visual Flutter app builder for rapid prototyping and low-code development that exports clean, production-ready Flutter code

AI and Mobile ML

We integrate LLM APIs and on-device ML models into mobile apps so AI features run without sending sensitive data off the device.

  • Core ML – Apple’s framework for running on-device machine learning models locally on iOS without network requests or sensitive data leaving the device
  • TensorFlow Lite – Lightweight ML runtime for deploying trained models on Android and iOS devices for image recognition, text classification, and predictions
  • MediaPipe – Google’s cross-platform ML framework for real-time face detection, hand tracking, pose estimation, and object detection in mobile apps
  • OpenAI API – GPT-5.4 integration for mobile AI features including natural language interfaces, content generation, and in-app intelligent assistants
  • Claude API – Anthropic’s LLM for mobile features requiring long-context reasoning, document analysis, and agentic task execution inside mobile workflows
  • Voice Interfaces – Speech recognition, text-to-speech, and natural language understanding for hands-free mobile interactions using platform-native and third-party APIs

Backend and APIs

Curotec builds and connects mobile backends on AWS and Firebase with real-time data sync, authentication, and push notification infrastructure.

  • AWS – Mobile backend infrastructure using Amplify, Lambda, API Gateway, and DynamoDB for scalable, serverless mobile application backends
  • Firebase – Google’s mobile backend platform with real-time database, authentication, push notifications, crash reporting, and analytics in one SDK
  • Supabase – Open-source Firebase alternative with PostgreSQL backend, real-time subscriptions, authentication, and storage for mobile applications
  • Laravel – PHP backend framework for mobile API development with Sanctum token authentication, queued notifications, and structured JSON responses
  • GraphQL – API query language for mobile clients that fetch only the data they need, reducing bandwidth and improving performance on slower connections
  • Push Notifications – APNs and FCM integration for iOS and Android push notifications with delivery tracking, segmentation, and deep link routing

Testing and Deployment

We use automated pipelines to test and deploy mobile apps. This ensures stable releases across all devices without manual submission.

  • XCTest – Apple’s native testing framework for unit, integration, and UI testing across iOS app components and user flows
  • Espresso – Google’s Android UI testing framework for writing reliable automated tests that run against the Android instrumentation testing API
  • Detox – End-to-end testing framework for React Native apps that runs automated UI tests on real iOS and Android simulators and devices
  • Fastlane – Mobile deployment automation tool for building, signing, testing, and submitting iOS and Android apps without manual App Store steps
  • GitHub Actions – CI/CD pipelines for mobile apps with automated testing, build signing, and deployment triggers on every pull request and release branch
  • TestFlight – Apple’s beta distribution platform for distributing iOS builds to internal testers and external beta users before App Store submission

FAQs about our mobile app services

Men at work

Flutter for consistent UI and high-performance rendering. React Native when your team knows JavaScript and React and wants a larger third-party ecosystem. Both are production-ready for most use cases.

When your app needs deep platform APIs, 120fps animations, AR features, or hardware access that cross-platform frameworks don’t expose cleanly. Native Swift or Kotlin is also right when performance is the primary differentiator.

Yes. We integrate LLM APIs and on-device ML into existing iOS and Android codebases. Most AI features don’t require a rebuild — they require the right integration architecture and clarity on what runs on-device versus in the cloud.

We configure Fastlane for automated build signing and submission, handle App Store Connect metadata, and manage the review process. Most rejections are avoidable with proper entitlement configuration upfront.

Yes. We design offline-first architectures with local storage, background sync, and conflict resolution so core features work without a reliable connection. This is standard practice for field service, logistics, and healthcare mobile applications.

We work in your repo, follow your release cadence, and document every architecture decision. Mobile engagements typically involve your product, design, and backend teams and we coordinate across all three throughout the build.

Ready to have a conversation?

We’re here to discuss how we can partner, sharing our knowledge and experience for your product development needs. Get started driving your business forward.

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