Custom Web App Development
App369 builds web applications with Vue.js and Nuxt that load in under 2 seconds -- well below the 3-second threshold where 53% of users abandon sites (Google, 2025). From marketing sites to SaaS platforms, we deliver performance-first web solutions.
Mobile, web, UX, consulting, and AI delivery under one product engineering team.
Full-stack product delivery across mobile, web, UX, consulting, and AI.
Web Development Services
Tailored Website Development
Built with Vue.js and Nuxt -- used by over 2.3 million websites worldwide (BuiltWith) -- our web applications are specifically designed to meet your business needs, from brochure sites to feature-rich SaaS platforms.
Responsive & Adaptive Design
Every website we create is mobile-friendly and adapts automatically to different screen sizes, ensuring an excellent user experience across all devices.
E-Commerce Development
Custom-designed Shopify stores see 35% higher conversion rates than default templates (Shopify, 2025). Our team builds secure e-commerce platforms with integrated payment systems, inventory management, and smooth checkout processes.
Search Engine Optimization
We optimize your site for search engines to improve visibility, drive traffic, and increase engagement with your target audience.
Frequently Asked Questions
How much does web application development cost?
According to Clutch's 2024 survey, custom web application development ranges from $10,000 to $150,000+ depending on scope and complexity. A standard business website with CMS costs $10,000-$25,000, while SaaS platforms with user dashboards, API integrations, and real-time features range from $50,000-$150,000. App369 uses Vue.js and Nuxt with SSR to maximize performance per dollar spent, reducing time-to-market by leveraging component-based architecture and automated deployment pipelines.
What web technologies does App369 use?
App369 builds web applications with Vue.js and Nuxt for the frontend, which powers over 2.3 million websites according to BuiltWith. For server-side logic we use Node.js, which handles over 1.3 billion requests per day across the npm ecosystem. Our stack includes TypeScript for type safety, TailwindCSS for utility-first styling, and server-side rendering (SSR) for optimal SEO performance. According to the 2024 State of JS survey, Vue.js has a 95% satisfaction rate among developers, ensuring long-term maintainability and talent availability.
How long does web app development take?
According to GoodFirms research, the average web application takes 3-9 months to develop. Simple marketing sites with CMS take 4-6 weeks, medium-complexity applications with user authentication and API integrations require 2-4 months, and enterprise SaaS platforms with real-time data, role-based access, and CI/CD deployment pipelines take 4-9 months. Using Nuxt with SSR and component libraries, App369 accelerates development by 25-35% compared to traditional MPA approaches.
Do you build progressive web apps (PWAs)?
Yes. According to Google, PWAs deliver 68% higher engagement rates and convert 36% more users than traditional mobile websites. App369 builds PWAs that work offline, load instantly, and can be installed on home screens without app store submission. Our PWAs leverage service workers, the Web App Manifest, and Nuxt's built-in PWA module to deliver native-like experiences. Companies like Twitter and Starbucks have seen 65% increases in session length after deploying PWAs.
What is the difference between a website and a web application?
A website is primarily informational, displaying static or CMS-managed content to visitors. A web application is interactive software that runs in the browser, enabling users to create accounts, process transactions, manage data, and interact with APIs in real time. Examples include project management tools, CRM systems, and SaaS dashboards. App369 builds both, using Nuxt with SSR for content-heavy sites that need SEO visibility, and Vue.js SPAs with REST or GraphQL APIs for complex interactive applications.