Website, Web App or PWA: Which Do You Actually Need?
The terms overlap, which is why people buy the wrong thing. Here is how to tell them apart.
Website
A website mainly presents information. Visitors read, browse, watch and contact you. Content is the same for everyone, or changes only slightly.
Examples: a company site, a portfolio, a blog, a restaurant page, a landing page for a campaign.
Strengths:
- Cheapest and fastest to build
- Best for search visibility
- Easy for non-technical staff to update with a CMS (content management system)
- Low maintenance
Limits:
- Little personalization
- No real data processing beyond forms and simple features
Typical cost: $2,000 to $10,000 for most business sites, more for large or heavily designed ones.
Web app
A web app is software that runs in the browser. Users sign in, see their own data, take actions and get results. It behaves like an app but needs no download.
Examples: a booking system, a customer portal, a dashboard, an invoicing tool, a project tracker, an online course platform.
Strengths:
- Personal accounts and data
- Complex logic and workflows
- Works on any device with a browser
- One codebase to maintain
- Updates reach everyone instantly
Limits:
- Costs more than a website
- Needs testing, security and ongoing maintenance
- Limited access to some phone features compared with native apps
Typical cost: $5,000 to $40,000 or more, depending on features. A simple internal tool can cost less. See our guide to custom software development cost.
Progressive web app (PWA)
A PWA is a web app with extra abilities. It can be added to a phone's home screen, open full-screen like an app, work partly offline and send push notifications. It still runs on web technology, with no app store required.
Examples: a field service tool used with poor signal, a delivery driver app, a news site with offline reading, an internal staff app.
Strengths:
- App-like feel without app store fees or review
- Offline support for key features
- Push notifications on supported devices
- One codebase for all platforms
- Cheaper than building separate native apps
Limits:
- Some device features are restricted, especially on iPhones
- Not in the app stores by default, which affects discovery
- Behavior varies between browsers and devices
- Not the best fit for heavy graphics or deep hardware access
Typical cost: usually 10 to 30 percent more than a standard web app, depending on offline and notification needs.
Quick comparison
| Website | Web app | PWA | |
|---|---|---|---|
| Main purpose | Inform and convert | Perform tasks | Perform tasks, app-like |
| User accounts | Rarely | Yes | Yes |
| Works offline | No | Limited | Yes, for chosen features |
| Install on home screen | No | No | Yes |
| Push notifications | No | Limited | Yes, on supported devices |
| App store listing | No | No | Optional with extra work |
| Search visibility | Excellent | Limited | Limited |
| Relative cost | Low | Medium to high | Medium to high |
How to choose
Ask these questions in order.
Key points
- Do users need to log in or save data? If no, a website is probably enough.
- Do they need to do something, such as book, pay, upload or track? If yes, you need a web app.
- Will people use it daily, on a phone, sometimes with bad signal? If yes, add PWA features.
- Do you need advanced phone features such as Bluetooth, heavy camera use or background tracking? If yes, consider a native app instead. See native vs cross-platform.
- Do you need to be found on Google? Keep public content on a proper website, even if the app lives elsewhere.
The combination most businesses end up with
A common setup looks like this:
Keeping them separate lets each do its job. The website can be updated quickly by marketers. The app can follow a stricter release process.
Key points
- A marketing website at your main domain, built for speed and search
- A web app at an app subdomain or behind a login for customers or staff
- PWA features added to the app if mobile use is heavy
Three quick examples
A dental clinic wants new patients to find it on Google and book. That is a website with an online booking form. A web app is overkill.
A training company wants clients to log in, see their course progress, download certificates and pay invoices. That is a web app, with a marketing website in front of it.
A cleaning company wants staff to see jobs, check in on site and upload photos, often in basements with no signal. That is a PWA with offline support, or a simple native app if they need more device features.
Start from what the user must do, not from the technology label.
Mistakes to avoid
Building an app when a website would do. If nobody needs to log in, you are paying for complexity.. Building only a website when you need workflow. Forms and email chains break once volume grows.. Choosing a native app too early. A PWA or web app can validate demand at lower cost.. Ignoring search. Web apps are poor at ranking, so you still need content pages.. Skipping security. Anything with accounts needs proper authentication and data protection.. Underestimating maintenance. Apps need updates, monitoring and support after launch.
When to move up
Start with the simplest option that meets your goal. Move up when you hit a real limit:
Key points
- Your team answers the same questions by email daily: add a portal or web app
- Customers ask for status updates: add accounts and tracking
- Field staff struggle with signal: add offline PWA features
- Usage on phones is high and engagement is slipping: consider notifications or a native app
How DECHY helps you choose
We build all three, so we start from the job your project has to do. If visitors mostly read, compare and contact you, a website is enough. If users log in and get work done, you need a web app. If they need it on their phones, with offline use or home screen access, a progressive web app may be the right step before a native app.
A landing page with us costs $2,000 to $4,000. A business website costs $3,000 to $7,000. A web app costs $5,000 to $12,000, and advanced web apps cost $15,000 to $40,000. When you need app store apps, a mobile app MVP (minimum viable product, a first version with only the essentials) costs $10,000 to $20,000.
Many projects grow from one type into another. We plan for that, so the website you build now does not block the app you may need later.
Use the cost estimator to compare options, or tell us what users need to do and we will recommend the right format.
Next step
Not sure which one you need? Tell us what your users should be able to do. We'll recommend the simplest option that gets you there and tell you what to leave out. Talk to DECHY.