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Web app vs. website: what's the difference and what do you need?

April 14, 2026·VirtuoLab

Web app vs. website: what's the difference?

Many business owners use the terms "website" and "web app" interchangeably. But there are important differences that determine which one you need.

What is a website?

A website is primarily informational. Visitors consume content: they read text, look at images and navigate through pages. Examples:

Company website
Blog
Portfolio
Landing page

What is a web application?

A web app is interactive. Users perform actions: they log in, fill in forms, manage data and communicate. Examples:

Online accounting software (Exact Online)
Project management tools (Trello, Asana)
E-commerce platforms with a customer portal
CRM systems

The key differences

CharacteristicWebsiteWeb app
PurposeInformInteraction/functionality
User interactionLow (reading)High (performing actions)
AuthenticationUsually notYes (login/accounts)
ComplexityLow-mediumMedium-high
Cost€2,000 – €10,000€5,000 – €100,000+
MaintenanceLittleRegular

When do you need a web app?

You need a web app when:

Users need to log in and manage their own data
There is dynamic interaction (sending messages, placing orders)
You want to automate business processes
You want to offer a SaaS product

When is a website enough?

A website is enough when:

You mainly want to inform people about your business
No user accounts are needed
The content is relatively static
Your budget is limited

Not sure? Get in touch and we'll help you make the right call.

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Get in touch for a no-obligation conversation about your project. We're happy to think through the best approach with you.