Nuxt, one of the most popular Vue frameworks for new web apps, can greatly improve your app performance and SEO. One of the most important Nuxt configurations is the mode, as it determines how your app is built, deployed, and served. There are three main types of web apps out there today:

1. Classic Single-Page App (SPA)
2. Universal/Isomorphic Web App (UWA)
3. Pre-Rendered Single-Page App

Nuxt makes it easy to switch between all three. We'll go over the pros and cons of each to help you decide what is best for your app.