What Is a Web App and Does Your Business Need One?

Website vs Web App: The Real Difference

A website is mostly static — the same content is shown to every visitor. A web app is dynamic — what you see depends on who you are, what you've done, and what data is attached to your account. The technical architecture is different, the development time is different, and the ongoing maintenance is different.

Examples Your Business Might Recognise

Does Your Business Need One?

You probably need a web app if any of the following are true:

What Does It Cost to Build One?

Web apps are more expensive than websites because they do more. A basic web app — user accounts, a simple data model, one or two core features — starts around $5,000–$15,000. A full platform with complex logic, payments, real-time features, and admin tooling can run $30,000–$100,000+.

The cost depends almost entirely on the scope: how many features, how complex the data model is, whether there's a mobile version, and how much of the business logic needs to be custom-built vs handled by existing services.

How to Start

The best starting point is a clear description of the problem you're trying to solve — not the features you want, but the manual process or gap that's causing pain. A good developer will translate that into a realistic scope and cost.

Start small. Build the core loop first — the one thing that makes the whole thing worth having — and add features later based on how people actually use it.