Web Apps vs. Websites: 7 Key Differences and Which Is Right For You

TL;DR: Websites show identical static content to every visitor, while web apps let users log in, manage their own data, and get personalized experiences. Web apps need databases and complex logic, so choose one when users must create content or interact.

Most people think of the internet as a collection of websites. But if you’ve spent any time around web development, you’ve probably heard the term “web app” used just as often, sometimes interchangeably and sometimes not.

The distinction matters more than you might think. Choosing the wrong one can mean rebuilding from scratch later, or paying for complexity you don’t need.

Once you can spot the seven differences between them, you can match your idea to the right one, compare the four main ways to build a web app, and plan for the hosting, security, and changes that come after launch.

What is a website?

A website is a group of related web pages, published by one owner on one domain, that displays mostly static content for visitors to read. Most websites exist to share information or market a business, and every visitor sees the same pages. That’s the main difference from a web app, where users log in and create, change, and interact with their own data.

“Website” is often used as a casual term for “anything online that I access through a browser,” which isn’t quite accurate. Visitors to a website are passive consumers: They can read and browse, but they can’t create or change the site’s data.

Most websites share three traits:

• Limited interactivity:Websites rarely do more than display content. A visitor might subscribe to a newsletter or share a post to social media, but that’s usually the extent of it.
• Owner-controlled content:Only a website’s owner can add and edit content. A bakery’s owner updates the menu, and visitors read it.
• The same experience for everyone:Websites deliver a standard experience to every visitor. Two people who open the same page see the same thing.

For example, websites include sites like:

• TechCrunch, a tech news publication where readers browse and read articles
• Levain Bakery, a bakery’s site that shares its story, locations, and products
• A List Apart, a publication of articles about web design and development
• NYC Cleaning Services, a local service business’s site that lists its services and contact details

Most local restaurants, small businesses, service businesses, and blogs qualify as websites.

Some companies have both a website and a web app, such as HubSpot or Bubble. They have static websites for marketing, with content and information you can access passively. They also have a web app that lets you log in, create and edit your own data, and have an interactive experience.

What is a web app?

A web app is interactive software that runs in your browser. Unlike websites, web apps let users log in, create and manage their own data, and complete specific tasks in an experience that changes with their data.

As Sam Morgan, a Bubble Developer on our team, puts it:

“A web app is an interactive piece of software that runs in your browser.”

Web applications also tend to share three traits:

• User accounts: Users log in and take actions like making purchases, connecting with other users, and adding and editing data. Each action is tied to that user’s account, so it’s still there the next time they log in.
• User-created content: Users create and share their own posts instead of only reading other people’s. What one user adds can shape what other users see.
• Personalized experiences: The app adapts to each user’s data, like Spotify’s personalized playlists or Netflix’s recommendations. The more someone uses the app, the more it reflects them.

Common web applications include:

• Gmail: Your inbox is different from everyone else’s, and you can compose, send, and manage your own emails.
• Facebook: Everyone’s Facebook experience is unique, and you can add your own content and interact with other people’s.
• Bubble: You can use the platform to create and publish your own web apps, instead of only viewing static content.
• Airbnb: You can add your own listings, book trips, and message hosts or guests.

Web app vs. website: 7 key differences

The core difference: A website displays static content for visitors, and everyone sees the same thing. A web app provides an interactive experience where users complete specific tasks with personalized data.

Sam describes the difference like this:

“A website is something that a user reads; a web application is something that they interact with. There are a lot of nuances to this, though. A simple contact form that a user fills out may not be enough on its own to make something a web app.”

This chart summarizes the key differences:

Let’s break down each of these differences.

Interactivity

This is probably the biggest distinction between websites and web apps.

Web apps allow complex interactions from anyone who makes an account. Websites allow basic interactions from visitors, and only the site’s owner can change the content.

Common website interactions include:

• Navigation: Visitors click links and use menus to browse pages. They can move from a homepage to a services page, but nothing they do changes what’s on either page.
• Basic engagement: Visitors fill out contact forms. The form sends a message to the owner, and the page itself stays the same for everyone.

Web app interactions include almost anything users need to complete tasks, such as:

• Account management: Users create profiles and manage personal settings. A notification preference set on Monday still applies when they log back in on Friday.
• Data creation: Users add and organize photos, to-do lists, or posts. That data belongs to them and shows up in their account, not on a page every visitor sees.
• Social features: Users add friends, join teams, or message other users. Each connection changes what that person sees in the app.
• Commerce actions: Users add products to carts or wish lists. The cart remembers what they picked, even if they leave and come back later.

Scalability

Scalability describes how many users you’re able to serve with your platform.

Web apps can provide solutions for any number of individuals or users. Websites provide a solution for one individual or team.

Andrew Vernon, senior Bubble Developer, contrasts them this way:

“For instance, a real estate website might allow one company to post their home listings and take requests about those listings. Whereas a real estate web app (like Zillow) might allow thousands of companies to post all of their home listings, along with information about their business, and to dynamically take requests about any of those listings. For founders and developers, it’s the difference between being able to build a site for one company and their users, or building software that could serve many companies and all of their users. The opportunities and end results of the dynamic systems that come from web applications provide a massive opportunity to serve a much larger user base.”

Web applications are accessible worldwide through a web browser on any device, so the same app can serve users wherever they are.

User profiles and authentication

User profiles are a key indicator of whether something is a website or a web app.

Web apps let users sign in and have a personalized experience based on their account. Websites don’t offer sign-in, or offer limited functionality once you’re logged in.

For example, many online publications, such as The Verge and The New Yorker, let visitors sign in, manage their subscription, and comment on content. While these sites are primarily content-focused, they include some interactive features typically associated with web apps.

On a web application like Medium or LinkedIn, though, users can create their own profiles, add content, interact with other users directly, and send messages. Their experience of the app is changed and shaped by their actions.

Functionality

Web applications offer much more complex functionality than websites.

Web apps have interactive elements and features that help users reach specific goals. Websites don’t have much functionality beyond displaying static content.

John Carter, associate Bubble Developer, expands on this:

“Both are accessed in a similar way. However, a web app allows far more complex and custom functionality to happen. You can participate in social networks (follow friends, share media posts), keep track of sales leads (create new leads and update existing), and view last month’s sales metrics (change table filters and create new visualizations). The way web applications shine is by giving the ability to the end user to truly customize their experience and contribute to the web app’s ecosystem.”

Bubble’s own editor is an example of a web app. When you use it, you can:

• Keep projects in your account:Sign up to store your personal projects. Each project lives in your account, so it’s waiting for you every time you log back in.
• Design your own screens: What you design is saved to your project, separate from what every other user is working on.
• Add your own data: The database and data you add belong to your project and shape how your app behaves.
• Work with teammates: Collaborators can open the same project and make changes alongside you.
• Launch and host your app: Your app’s end-users then log in to something you built.

Underlying technologies

The underlying technology of a website is much simpler than a web app’s.

Web apps run on programming languages, frameworks, and databases working together. Websites can be built with basic HTML and CSS.

For example, a productivity web application might store different kinds of data, like users, projects, and teams, and connect them so each project belongs to a team.

On top of that data sits the app’s logic: the rules that decide what happens when a user takes an action or when data changes. That logic is what lets you:

• Connect different types of data: A project can belong to a team, so everyone on that team sees the same project list.
• Change what’s on the page:Hide, show, or animate elements based on who’s looking. A delete button might appear only for the person who created a post.
• Add search: Users can find a listing by city or filter their tasks by due date.
• Separate personal and shared data: A user can edit their own tasks while seeing the tasks a teammate has shared with the team.
• Let users manage profiles: A new profile photo updates everywhere that user appears in the app.

To see how this works on Bubble, read about database functionality in the Bubble Manual.

Cost

Generally, web applications are more expensive to develop than websites.

Web apps traditionally required development teams, which can be costly. Websites can be built with drag-and-drop website builders.

Traditional web app development costs include:

• Development teams: Multiple developers work for months or years to build the app. Salaries or agency fees usually make up the largest share of the budget.
• Ongoing maintenance: Apps need regular updates and bug fixes after launch. Every change a customer asks for adds to the developer hours you pay for.
• Infrastructure: Hosting and server costs grow with your app. More users and more data mean more capacity to pay for each month.

Newer ways to build, including AI coding tools and fully visual app builders, have changed this math. The four ways to build a web app, covered below, each come with different costs in skills, budget, and the work of changing the app later.

Development requirements

Web apps are generally more complicated to develop than websites as well.

Web apps require frontend and backend development, databases, privacy and security, and more. Websites are traditionally less work to build and maintain.

If you’re coding from scratch, building all of this requires a team of developers and designers, plus servers and a hosting solution.

AI coding tools and fully visual app builders have changed what web app development takes. Where they differ most is how much of the logic and data you can see and change yourself.

Examples and use cases

Website examples

Websites are best for presenting information. Common examples include:

• Marketing sites: A company homepage explains its services, like Levain Bakery. Visitors learn what the business offers and how to reach it.
• Blogs and news sites: Publications display articles for reading, like TechCrunch. Every reader sees the same story.
• Portfolios: A photographer’s site showcases their work. Potential clients browse the gallery and get in touch through a contact page.
• Informational sites: A local government page lists park hours. Residents check the details and move on.

Web app examples

Common examples include:

• Social networks: Facebook and X (formerly Twitter) let users create profiles and share content. Each person’s feed reflects who they follow.
• SaaS tools: Trello handles project management, and Figma supports design collaboration. Teams work in shared spaces where everyone’s changes show up for each other.
• E-commerce marketplaces: Airbnb lets hosts list properties and guests book them. The app connects two kinds of users and handles the transaction between them.
• Email clients: Gmail lets users manage their personal inboxes. No two inboxes look the same.
• Financial apps: Banking platforms handle account management and transactions. Users see their own balances and history, protected behind a login.
• Cloud storage: Google Drive and Dropbox handle file management. Users upload their own files and decide who else can view them.

When to choose a website

You should build a website if you need to:

• Market your company: A homepage, an about page, and a services page cover what most new customers want to know.
• Publish articles or blog posts: Readers come to read, and they don’t need an account to do it.
• Show a portfolio: A gallery of past projects helps potential clients decide whether to hire you.
• Share contact details: Customers can find your phone number, address, and hours without logging in.
• List a menu or services: You update it when prices change, and every visitor sees the same version.

For one-way communication, a website builder is the most straightforward and cost-effective choice.

When to choose a web app

You should build a web app if you need users to:

• Log in: Users have a personal account or profile, and their settings and history follow them every time they come back.
• Manage their own data: Users post photos, manage projects, or create listings. Each user’s data belongs to them and shapes what they see.
• Interact with each other: Users send messages or follow accounts. A marketplace where buyers message sellers is a common example.
• Complete multistep tasks: Users book, buy, or analyze data. A booking tool has to check availability, take payment, and confirm the reservation.
• Get a personalized experience: The app responds to each user’s inputs and history. A returning customer might see recommendations based on what they’ve ordered before.

If you expect to need any of this functionality in the future, it’s often better to start with a web app to avoid rebuilding later.

Use this quick check to decide:

4 ways to build a web app

If you decide a web app is the right choice, you have four main paths to build it. Each approach requires different skills and affects how you change the app after the first version.

• Traditional development: Hiring an engineering team or agency to write code from scratch offers complete customization. It requires a large budget, and you’ll rely on developers for every future change.
• AI coding tools: Platforms that generate code from a prompt get a first version up fast and let you adjust the screens visually. The logic and backend are still code, though, so changing how the app works means writing another prompt or editing the code yourself.
• Traditional no-code tools: Website builders and app platforms with visual interfaces are often built for one specific kind of app, like internal portals or directories. They’re quick to start with, but they can limit how far you scale or how much custom logic you add.
• Fully visual app builders: Platforms where every layer of the app is visual and editable give you control without code. Unlike AI coding tools, they make the logic, data, and privacy rules visual too, so you can see how the app works and change it yourself.

AI coding tools have inspired millions of people to build, and they’re a fast way to get a first version. The differences between these approaches show up after that, when you need to change how the app works.

What it takes to keep a web app running after launch

Generating an app takes minutes now. Changing it six months later, when customers depend on it, is the harder part. That’s when it matters whether you can see how your app works.

Unlike a static website, a web app needs ongoing management after launch:

• Hosting: Your app has to run around the clock, because users log in and save data at any hour.
• Scaling: Server capacity has to grow with your user base, or the app slows down as more people sign up.
• Security and privacy: Web apps handle logins and personal information, so privacy rules and security matter from the first signup.

You also need a way to make changes when customers ask for them. If you don’t understand how your app’s logic and database work, every fix and new feature gets harder as you grow. When you can see how it works, you can fix problems and make precise changes yourself, without handing the app to someone else.

Build your web app on Bubble

Bubble is a fully visual app builder for web and native mobile apps. Every layer of your app, including the design, logic, data, and privacy rules, is visual and editable, with no code required. Use AI when you want speed or edit by hand when you want precision.

Start by describing your idea to the Bubble AI Agent. It begins with a planning session, asking about your users and features before it generates the design, database, and workflows for your first version. Everything the Agent builds, you can read and change yourself:

• Understand how your app works: Your app’s logic reads as plain-language steps. Workflows are the step-by-step instructions that run when a user does something, like “When someone signs up, send a welcome email.” Database triggers run whenever specific data changes. When you’re not sure why something works the way it does, the Agent explains its setup in plain language, and you learn as you build.
• Refine it your way: Chat with the Agent to add features and troubleshoot, or edit the design, data, and workflows visually when you want precise control. You can add a search bar, connect projects to teams, or show a button only to the person who created a post, so the app works the way you imagined and looks like yours.
• Scale on one platform: Every plan includes a built-in database, and paid plans add hosting and the security dashboard. When the Agent creates a data type, it creates privacy rules for it too, and you can review and change those rules to decide who sees what, down to each field. With Bubble for native mobile apps, you can build iOS and Android apps from the same editor, sharing the same backend as your web app.

Getting started is free. The Free plan is for building and testing your app, and paid plans add the hosting you need to launch. Every plan includes a monthly AI credit allowance, and generating an app or editing visually doesn’t use AI credits.

Paid plans start at $29 a month on the Starter Web plan, billed annually. On October 20, 2026, that price rises to $32 a month billed annually, or $39 billed monthly. Builders who buy the annual Starter Web plan before then keep $29 a month for a year.

Here’s how three founders are building and running their businesses on Bubble:

• Messly’s founders moved their web app to Bubble with one founder handling development. They say development is “probably 12 to 20 times faster than what we did before” with Bubble’s visual editor (December 2023).
• Ohana runs its sublease marketplace on Bubble, with $16.2 million in host earnings and 2,700 sublease transactions in 14 months (as of July 2025). “Bubble gives us an advantage because anybody can go in and easily understand what’s going on,” says Ezra Gershanok.
• Makko founder Clément Llehi built the platform himself at night while working a day job. The business has grown to more than 600 B2B clients (as of May 2026).

If your idea needs logins, user data, and room to grow, describe it to the Agent and see the plan it drafts with you. Start building your web app with Bubble today.

Frequently asked questions about web apps vs. websites

What is the main difference between a website and a web app?

A website displays static content that every visitor sees the same way, while a web app is interactive software where users log in, create and manage their own data, and get a personalized experience.

Is Netflix a website or a web app?

Netflix is a web app because users log in to personalized profiles with their own recommendations and viewing history.

Is Facebook a web app or a website?

Facebook is a web app where users create profiles, share content, and interact with personalized feeds.

Is Amazon a website or a web app?

Amazon is a web app because users log in, keep items in a cart, place orders, and see recommendations based on what they’ve bought before.

Can a web app also be a website?

Yes, many companies have both a static marketing website and an interactive web app. HubSpot and Bubble, for example, each run a marketing website that anyone can browse, plus a web app where users log in and work with their own data.

Is a web app the same as a mobile app?

No. A web app runs in a browser on any device, while a native mobile app is installed from the App Store or Google Play Store and can use device features like the camera and push notifications.

Can I turn my website into a web app?

Yes, by adding user accounts, a database, and logic that lets users create and manage their own data. Many companies keep their marketing website as it is and build the web app alongside it.

Do I need to know how to code to build a web app?

No. On Bubble, a fully visual app builder, you can describe your idea to the Bubble AI Agent and then change the design, logic, and data yourself without writing code.