React Development Services

Ask to see code or a live app the team built, not only designs — a design portfolio says nothing about how a front end is engineered. Ask where they keep server data versus local state, how they split components, what they test automatically and how a failed API call reaches the user. Ask for a sample of acceptance criteria and a past handoff document. Our published case studies are mostly design work, so we don’t offer them here as React engineering; you judge us instead on the component plan and a first slice running against your API, both before you commit further.

A technical scope with acceptance criteria; the component architecture, design tokens and a shared library; every screen in scope with its loading, empty and error states; routing, state management and a typed API layer; the third-party services in scope; unit, integration and end-to-end tests with a deployment pipeline; accessibility, speed and security checks; error monitoring; and a staged release followed by the handoff. Libraries are chosen in the scope to suit your team, not fixed in advance.

React Native builds iOS and Android apps; this page is about interfaces that run in the browser. Plain React suits apps behind a sign-in, such as dashboards, admin tools and editors, where search engines never look. Next.js adds server rendering and routing on top of React, which matters when public pages must load fast and rank. A content site with a handful of widgets rarely needs React at all; Astro serves it as plain HTML. We settle this in the scope, before any code.

Yes. We start with a short review: dependencies and how out of date they are, where state lives, how components are shared, what is tested and what breaks most often. Then we agree whether to refactor in place or replace the worst parts screen by screen while the app keeps running. We avoid a full rewrite unless the review shows it is cheaper, and each step ships behind the same acceptance criteria as new work.

When it is scoped, yes. A React engagement assumes a backend exists or is being built by your team, and we agree the API contract with them. If you need the server, database, roles and hosting built too, that is Web App Development, and the front end is one part of it. If the product is not designed yet, Web App Design or Product Discovery comes first.

Approved designs for at least the first screens, access to your repository or a decision to start a new one, API documentation with a staging backend, sandbox keys for any payment, sign-in or analytics service, and one product owner who can accept each slice. If the design or the API is still moving, the foundation and component library can start while they settle.

As written acceptance criteria agreed before the build. Typical ones: keyboard and screen-reader use on key flows, contrast and focus states, a size and speed budget for key screens, no secrets in the browser bundle, dependencies scanned in the pipeline, and errors reported to a monitoring tool with a named owner. Each release is checked against them, and the results form part of your test evidence.

The source code in your repository, the build running on your hosting, documentation of the components and data layer, test reports, release notes, a runbook for deploys, and a map of who owns what after release. Your engineers can take over from there. Or fixes, new features, usability testing, a UX Audit or design work can continue with us, each on its own scope.

How many screens and workflows are in scope, how much state they share, how complete and stable the API is, how many third-party services connect, whether an existing codebase has to be reviewed first, the quality criteria you need, and how ready the design is. We set a custom scope and estimate in the proposal, fixed or phased, and agree the timeline once scope, access, dependencies and acceptance criteria are clear.

Designing the product from scratch, backend services and databases, native mobile apps, content, and the fees and account actions of your hosting and other providers, which stay in your name. User numbers and revenue are outside what code can promise; we answer for security, speed and uptime only as the scope defines them.