"Do we need an app?" is one of the most common questions we get, and often the honest answer is "not the kind you are thinking of". Website, web app and mobile app are three different things. Here is what each is, how they differ, and how to choose.
What is the difference between a website, a web app and a mobile app?
A website is something people read: it presents information. A web app is something they use in the browser to book, manage an account or work in a dashboard. A mobile app is downloaded from an app store and runs on the phone. The right one depends on what users need to do and where.
| Website | Web app | Mobile app | |
|---|---|---|---|
| Main job | Inform and convert | Let users do tasks | App-store experience |
| Access | Any browser | Any browser | Install from store |
| Cost | Lowest | Medium | Highest |
| Best for | Marketing, info | Portals, tools, bookings | Frequent, on-the-go use |
When do you need a web app instead of a website?
When users need to do more than read: log in, book, pay, manage an account, or use a tool. That is the line between a website and a custom web app. If your idea involves accounts, dashboards or workflows, it is a web app.
Do you actually need a mobile app?
Less often than people assume. A mobile app makes sense for frequent, on-the-go use with features like notifications or offline access. For most business needs, a well-built web app works on every phone's browser with no download, no app store, and far less cost, which is why we usually start there. If cost is the deciding factor, see our guide to custom web app prices in Ireland.
How do you choose?
Start with what users need to do and how often. A website suits information, a web app suits tasks and accounts in the browser, and a mobile app suits frequent use that needs phone features such as notifications. Most businesses need a great website, often with a web app behind it, and rarely a native app.
Frequently asked questions
Is a web app cheaper than a mobile app?
Usually, yes. A web app runs in the browser on any device, so there is one build rather than separate iOS and Android apps, and no app-store process. For most business tools, that makes a web app both cheaper and quicker to reach users.
Can a web app work on phones?
Yes. A well-built web app is fully responsive and works in any phone's browser, and can even be saved to the home screen. For most needs it gives an app-like experience without the cost and friction of a native app.
How do I know which I need?
Tell us what your users need to do. If your users mostly read, you need a website. If they need to do things, you need a web app. If they use it often on the go, a mobile app may be worth it. We will steer you right or get a free quote.
Not sure whether you need an app or a website? We will give you a straight answer. Get a free quote.