Next.js is built on React, so this isn't really "either/or" — it's "plain React SPA, or React with a framework around it?" The right answer depends on what your app needs to do, not on what's trending.
When is a React SPA enough?
If you're building an authenticated dashboard or internal tool where SEO doesn't matter and everything loads after login, a Vite + React SPA is lean and fast to develop. There's no server to run, deployment is a static bundle, and you avoid framework conventions you don't need.
When does Next.js earn its keep?
- SEO matters — marketing pages, blogs, and e-commerce benefit from server rendering and static generation so content is crawlable and fast on first paint.
- You want one codebase — Next gives you API routes, server components, and rendering strategies in a single project.
- Performance at scale — image optimization, edge rendering, and granular caching are built in.
The rendering spectrum
Next lets you choose per route: static generation for content that rarely changes, server rendering for personalized pages, and client rendering for app-like interactivity. The official rendering docs lay out the tradeoffs in detail — that flexibility is the real advantage, but it's also complexity you only want if you'll use it. A content-heavy public page with per-user personalization, for instance, is exactly the case where mixing static generation for the shell with server-rendered personalized blocks pays off.
React SPA or Next.js: which should you choose?
Public-facing site or content that needs SEO and speed → Next.js. Internal, behind-login app where simplicity wins → React SPA. And if you're unsure, Next.js is the safer default because it can do both — you just opt into complexity as you need it.
We build with both — and we'll recommend the one that fits your project, not our preference or whichever is trending that quarter.
See it in production: our Vedic Astrology Prediction Platform is built on Next.js and React for exactly this mix of content-driven and personalized pages.