The
Outsourcing
Programming

Mobile App Development for iOS and Android

We design and build robust backend systems with Node.js, TypeScript, and PHP — delivering secure APIs, optimized databases, and scalable serverless architectures.

Our backend engineers help startups and digital agencies build maintainable, lightning-fast infrastructures using REST, GraphQL, and AWS services. From API architecture to DevOps automation, THNX delivers clean code that powers your entire product.

React
Node.js
Expo
JavaScript
TypeScript
Metro
Android
iOS
Async Storage
Firebase
SQLite
Stripe
Supabase
React
Node.js
Expo
JavaScript
TypeScript
Metro
Android
iOS
Async Storage
Firebase
SQLite
Stripe
Supabase

Our Cases

Mobile App Development — Building Cross-Platform Experiences That Drive Growth

We design and develop powerful mobile applications that help businesses, startups, and digital agencies reach users wherever they are.

Our Mobile App Development Services combine modern technologies, intuitive UX, and reliable backend integration — delivering apps that perform fast, look stunning, and scale with your business.

From React Native cross-platform apps to full-cycle App Store and Google Play deployment, we manage every technical detail, so you can focus on user growth and product strategy.

Whether you’re building an MVP or a high-traffic enterprise solution, we ensure consistency, transparency, and measurable results.

React Native Development (iOS & Android)

We build cross-platform mobile apps using React Native, giving you one shared codebase that performs like a native app.

Our developers create responsive, fast, and stable applications that seamlessly adapt to both iOS and Android devices — saving time and reducing maintenance costs.

With React Native, we deliver:

  • Native-level performance with reusable components
  • Consistent UI across platforms
  • Fast updates via OTA (Over-The-Air)
  • Integration with device APIs (camera, GPS, biometrics, notifications)
  • Secure and optimized builds for App Store and Play Store

This approach gives startups and established businesses the flexibility to launch faster and scale efficiently without sacrificing quality.

App Store & Google Play Deployment

Publishing is more than uploading a file — it’s about ensuring compliance, optimization, and discoverability.

We handle full-cycle publishing and maintenance, including all store requirements, analytics integration, and post-launch support.

Our app-deployment services cover:

  • Preparing store listings (screenshots, descriptions, keywords)
  • Setting up bundle identifiers, signing keys, and build pipelines
  • Managing updates, version control, and rollbacks
  • ASO (App Store Optimization) to improve visibility
  • Performance tracking with Firebase and Google Analytics

We make sure your app not only passes review but also stands out and stays stable across every update.

Mobile UI/UX & Animation

Design defines first impressions.

We craft intuitive mobile interfaces focused on user flow, motion design, and emotional connection.

Our UI/UX team collaborates closely with product owners to ensure the design matches business goals while delivering a premium user experience.

Our process includes:

  • User journey mapping and wireframing
  • Prototyping with Figma and Framer
  • Micro-interactions and motion effects for smooth navigation
  • Accessibility and responsiveness for all screen sizes
  • Testing UX across devices and OS versions

We blend aesthetics and functionality, creating designs that feel natural and keep users engaged.

Backend Integration for Mobile

A mobile app is only as good as the system behind it.

Our engineers connect your app to robust backend APIs, databases, and cloud infrastructure to enable real-time data and secure transactions.

We specialize in:

  • REST & GraphQL API integration
  • Real-time sync with Firebase or Socket.io
  • Push notifications and in-app messaging
  • Cloud data storage (AWS S3, GCP, Azure Blob)
  • Payment gateway integration (Stripe, PayPal)

Our goal is to deliver apps that don’t just look great — they work flawlessly, even under heavy traffic and complex data flows.

Our Mobile Development Process

Every project follows a structured, transparent workflow from concept to launch and beyond:

  1. Discovery & Planning — defining goals, target audience, and core features.
  2. Design & Prototyping — wireframes, mockups, and interactive UI prototypes.
  3. Development & Integration — React Native implementation and backend sync.
  4. Testing & Optimization — QA across devices, emulators, and real users.
  5. Publishing & Maintenance — deployment, analytics, and post-release support.

We follow Agile and Scrum methodologies to keep delivery predictable, flexible, and fully aligned with your business timeline.

Why TOP for Mobile App Development

  • U.S. management with global delivery capability
  • Expertise in React Native, Swift, Kotlin, and cross-platform frameworks
  • Full-cycle support — from UX design to backend integration and publishing
  • Scalable and secure mobile architectures
  • Transparent communication and project tracking
  • NDA-protected partnerships for agencies and enterprises

We build mobile solutions that combine performance, security, and usability — helping you reach more users and generate real business impact.

Mobile Apps That Empower Your Business

With us, your mobile strategy becomes a competitive advantage.

We transform your ideas into high-performance applications that connect brands and users in meaningful ways.

Whether you need a customer app, on-demand service platform, or enterprise tool for internal teams — our experts deliver results you can measure.

Let’s build something users love to open every day.