Custom Web App Development

From marketing sites to SaaS platforms, we deliver performance-first web solutions.

App369
Services
app369.com/service/web-apps
Web Apps

Mobile, web, UX, consulting, and AI delivery under one product engineering team.

Design + build
Full-stack team
SEO aligned
Featured Route
Web Apps

Full-stack product delivery across mobile, web, UX, consulting, and AI.

Section
Service
Focus
Design + build
Delivery
Full-stack team

Web Development Services

Tailored Website Development

Built with Vue.js and Nuxt, our web applications are designed around 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

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?

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?

Our stack includes TypeScript for type safety, TailwindCSS for utility-first styling, and server-side rendering (SSR) for optimal SEO performance.

How long does web app development take?

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.

Do you build progressive web apps (PWAs)?

Yes. 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.

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.

Get a Personalized Assessment by Email

Submit your project details and we'll reply by email with a personalized assessment, usually within one business day.

Prefer a call? Consultations are $100 per 15 minutes, paid upfront.