# Web app development | React and Next.js

> Custom web apps in React and Next.js that handle real users, traffic and payments. Weekly demos, full code ownership and a fixed price within 48 hours.

Source: https://codeintelli.com/services/web-development

Your website should win you customers. Right now it's slowing them down.

We build fast, accessible websites and web apps with React, Next.js and a CMS your team can update without calling a developer.

## Problems we solve

- Our site takes forever to load on mobile: Visitors leave before the page appears, and your ad spend leaves with them.
- Every text change needs a developer: A simple update waits a week in someone's queue.
- We don't show up in Google: Slow pages, poor structure and missing basics hold your rankings back.
- Our site looks dated next to competitors: Prospects judge you before they read a word.

## What we build

- Marketing websites: Fast, accessible sites built with Next.js, Astro or Remix
- Web applications: Customer portals, dashboards and tools with React and Node.js
- Headless CMS: Sanity, Contentful or Strapi set up around your team's real content
- Speed and SEO: Core Web Vitals, structured data and clean URLs built in

## How we work

- Discover (1-2 weeks): We agree who the site is for, what it must achieve and how we'll measure it.
- Design (2-4 weeks): We design key pages and components, test them on mobile and refine them with your feedback.
- Build (6-12 weeks): We build the site, connect the CMS, forms and analytics, and demo progress every week.
- Launch (1-2 weeks): We handle redirects, SEO checks, performance testing and launch, then train your team on the CMS.

## Results

- ComfyMart: Online store for beds and mattresses with Stripe checkout. Built with Next.js.
- Key CMS Accounting: Web app for accountants that covers content, analytics and recruitment in one place.
- Operations Dashboard, Frankfurt: Business operations dashboard with role-based access for a company in Frankfurt, Germany.

## Technologies

React, Next.js, Remix, Vue, Astro, Node.js, Sanity, Contentful, Strapi, Vercel, Netlify, PostgreSQL, GraphQL

## Questions

### Will we lose our Google rankings when we relaunch?
Not if it's done carefully. We map every old URL to a new one, keep what ranks well and run SEO checks before and after launch.

### Can our marketing team update the site themselves?
Yes. We set up a CMS with the page sections they need, so they can publish pages and edit content without a developer.

### What does a website cost?
It depends on the number of pages, features and integrations. After a free 30-minute call, we send a written plan and a fixed price within 48 hours.

### Can you work with our design agency or in-house team?
Yes. We often build from another team's designs, or work alongside your developers on part of the project.

## Contact

- Email: biz@codeintelli.com
- Phone / WhatsApp: +91 92745 85376
- Book a free 30-minute call: https://codeintelli.com/book-a-call