Question 1

What is the difference between React.js and Next.js?

Accepted Answer

React.js is a JavaScript UI library for building component-based interfaces. Next.js is a React framework that adds Server-Side Rendering (SSR), Static Site Generation (SSG), file-based routing, API routes, and image optimization. For SEO-critical sites, Next.js is preferred. For internal SPAs and dashboards, React.js is sufficient. GWS recommends Next.js for most public-facing applications.

Question 2

How does Next.js improve SEO for my website?

Accepted Answer

Next.js improves SEO by pre-rendering pages either at build time (SSG) or on each request (SSR), making fully-rendered HTML available to Google bots instantly. Combined with GWS's structured data implementation (JSON-LD schema), Core Web Vitals optimization, and proper semantic HTML, Next.js sites consistently outperform pure React SPAs in organic search rankings.

Question 3

Can GWS migrate our existing React app to Next.js?

Accepted Answer

Yes. GWS has migrated several production React SPAs to Next.js. Our approach: audit the existing app architecture, identify routes and state management patterns, rebuild with Next.js App Router (using React Server Components for static content and Client Components for interactive features), then run both versions in parallel until traffic cutover. Typical migration takes 2–6 weeks.

Question 4

What state management library do you recommend for React?

Accepted Answer

For most SaaS applications, GWS recommends Zustand for its simplicity and minimal boilerplate. For complex enterprise apps with many global state slices, Redux Toolkit is our preference. React Query (TanStack Query) is used for all server-state (API data caching). We avoid over-engineering — if React Context + useReducer suffices, we use that.

Question 5

How much does React or Next.js development cost?

Accepted Answer

React/Next.js development from GWS starts at $15/hour for dedicated senior frontend engineers. A standard marketing site in Next.js costs $5,000–15,000. A complex SaaS dashboard with React ranges from $20,000–$80,000. Dedicated monthly engagement starts at $2,500/month per senior frontend developer with full US timezone overlap.