Web & Mobile Development
Full-stack web applications and cross-platform mobile apps built with modern frameworks and a focus on performance, reliability, and user experience.
Modern Applications for the Modern Web
The web and mobile landscape moves fast, and the applications your business relies on need to keep pace. Qylio LLC builds web and mobile applications using the latest frameworks and best practices, delivering solutions that are fast, accessible, and built to scale. We work with you to understand your users, define your requirements, and deliver software that meets both your business goals and your users' expectations.
Our web development practice centers on React and Next.js, giving your applications server-side rendering for SEO, static generation for speed, and client-side interactivity for rich user experiences. We use TypeScript across the stack for type safety and maintainability, and we follow component-driven development patterns that make your codebase organized and easy to extend.
For mobile applications, we evaluate the right approach for each project. React Native allows us to build cross-platform apps that share code between iOS and Android while maintaining native-quality performance. When a project demands native capabilities or platform-specific optimizations, we develop with Swift for iOS and Kotlin for Android, ensuring the best possible experience on each platform.
Every application we build includes thorough testing, responsive design for all screen sizes, accessibility compliance, and performance optimization. We handle the full lifecycle from initial architecture through App Store and Play Store submission, so you have a partner for every stage of your product's journey.
Web Technologies
React and Next.js for dynamic web applications
TypeScript for type-safe, maintainable code
Server-side rendering and static site generation
Progressive Web App (PWA) capabilities
Material UI, Tailwind CSS, and custom design systems
Node.js and Python backend services
Mobile Technologies
React Native for cross-platform development
Swift and SwiftUI for native iOS apps
Kotlin for native Android apps
Expo for rapid prototyping and development
App Store and Play Store submission
Push notifications and device integration
What We Deliver
Our web and mobile projects include everything you need for a successful launch and long-term operation.
Custom Web Applications
From internal dashboards to customer-facing platforms, we build web applications tailored to your workflow. Each application is responsive, fast-loading, and optimized for search engines.
Cross-Platform Mobile Apps
Reach your users on iOS and Android with a single codebase. React Native lets us deliver native-quality apps efficiently, with shared business logic and platform-specific UI where it matters.
E-Commerce Solutions
Online stores with product catalogs, shopping carts, secure checkout, and inventory management. We integrate with payment processors and shipping services for a complete commerce experience.
Content Management Systems
Headless CMS integrations and custom admin panels that give your team full control over website content without requiring developer involvement for routine updates.
Real-Time Applications
Chat systems, live dashboards, collaborative tools, and notification systems that use WebSocket connections for instant data delivery and seamless user interaction.
Performance Optimization
Code splitting, lazy loading, image optimization, and caching strategies that ensure your application loads fast and runs smoothly even on slower networks and devices.
Ready to Build Your Application?
Tell us about your web or mobile project. We will provide an honest assessment of the best approach and a clear path forward.
Get in Touch