“We want an app” is one of the most common things we hear at first meetings. Yet it can mean several very different things. One person imagines an icon on their phone, another a company-wide system accessible from the browser, someone else a portal for customers. Before you start development, it is worth clarifying what form the app should take. Each option has its strengths, different demands on development and maintenance, and suits different situations.
In this article we explain the differences between a web app, a progressive web app and a native mobile app, and show you how to choose between them.
Web app
A web app runs in the browser on a computer, tablet and phone. Users don’t install anything; a link and a login are all they need. Unlike an ordinary website, it is not just about presenting information: a web app works with data, has user accounts, permissions and often complex logic. Information systems, booking tools, client portals and e-shop back offices all belong here.
Main advantages:
One version for all devices. A well-designed web app adapts to the screen size.
Instant updates. You deploy a new version and all users have it straight away, without app store approval.
Easy access. The app can be opened from anywhere; a browser is enough.
Discoverability. Public parts can be found by search engines.
The limitations lie mainly in access to phone features and working offline. A web app is therefore ideal for internal systems, client portals and tools used mainly at a computer or with a good connection.
Progressive web app (PWA)
A PWA is a web app that can behave much like an app on your phone. Users can add it to their home screen, it opens full screen without the browser bar, can work even with a weak or patchy connection and on most devices it can send notifications.
For many projects it is a sensible compromise: one codebase for all devices, no app store approval and yet an experience close to a native app. A PWA suits customer apps, loyalty programmes, simple field tools or internal apps that people keep handy on their phones.
Keep in mind, though, that PWA capabilities vary by operating system and browser. Some features work better on Android than on the iPhone, and people are not used to installing apps from the web. If it matters that users can find you in an app store, a PWA on its own may not be enough.
Native mobile app
A native app is downloaded from Google Play or the App Store and is built specifically for the mobile operating system. That lets it make full use of the phone: the camera, location, sensors, Bluetooth, background tasks, biometric login or in-app payments. It offers the smoothest interaction and is visible in the stores where people look for apps.
Today, mobile apps are often developed cross-platform, from a single codebase for both Android and iOS. The result behaves like a native app, and development and maintenance are more efficient than with two separate apps.
A native app does have its demands, though:
Updates have to go through the stores and their review process.
Users may not update immediately, so you need to account for several versions in use.
The stores have their own rules, which change from time to time and require a response.
The app needs ongoing maintenance as new operating system versions come out.
Comparison at a glance
Installation: web app none, PWA optional from the browser, native app from a store.
Updates: web app and PWA instant, native app after store approval.
Phone features: web app limited, PWA partial, native app full.
Working offline: web app minimal, PWA partial, native app best.
Visibility: web app and PWA in search engines, native app in app stores.
How to decide
Start with the users rather than the technology. Ask yourself a few questions:
Will people use the app every day, or only occasionally?
Do you need phone features the web can’t handle, such as background tasks, scanning or advanced camera use?
Does the app need to work where there is no signal?
Is it important that people can find you in an app store?
Is the app used mainly in the office or out in the field?
Are the users your employees, or customers you first have to persuade to install it?
If the answers lean towards “occasionally”, “no” and “in the office”, a web app or PWA will be the faster and simpler route. If you need daily use in the field, offline work and full access to phone features, a native app is worth it.
Three example scenarios
An internal company system
A company wants to track jobs, plan work and see the status of projects. People work mainly at a computer and occasionally check their phone. A web app with a responsive interface is the clear choice here. If technicians in the field need to fill in reports without a signal, a mobile app connected to the same data can be added for them later.
Bookings and a loyalty programme
Customers book appointments and collect points. Most of them come only a few times a year and won’t want to install an app for that. A web app or PWA is a good fit. Regulars add it to their home screen; everyone else uses it in the browser.
The app as the main product
If the app is the product itself, such as a game, a fitness app or a tool people use every day, it belongs in the app stores. Users look for it there, expect smooth interaction and notifications, and leave ratings that influence how many more people download it.
What to prepare for when developing a mobile app
If you opt for an app in the stores, expect a few things you don’t deal with on the web:
Developer accounts on Google Play and the App Store, ideally registered to your company so that the app belongs to you.
Store materials: an icon, screenshots, an app description and a privacy policy.
Testing on different devices, because phones vary in screen size, performance and system version.
An update plan, because every new version of iOS and Android may require changes.
None of this is a reason to avoid a mobile app. It is just good to plan for it from the start so it doesn’t catch you by surprise after launch.
User experience always matters
Whichever path you choose, what ultimately decides an app’s success is how it feels to use. People don’t judge the technology; they judge whether they can quickly get done what they need. Keep a few principles in mind when designing it:
The most common actions within one or two taps. What people do every day must be close at hand.
Readability on a small screen. Large enough text and buttons, and no tables that need scrolling sideways.
Speed. The app should respond instantly, even while data is still loading in the background.
Clear error messages. Users should know what happened and what to do next.
Accessibility. People with impaired vision or limited mobility should be able to use the app too.
Good interface design is just as important for an internal system as for a customer app. Employees spend hours a day with it, and every unnecessary screen or field adds up many times over.
One foundation for web and mobile
The choice doesn’t have to be final. A well-designed application has a separate server side with an API that both a web interface and a mobile app can connect to. Data, permissions and business logic live in one place, and the individual interfaces are just different windows into the same system.
You can start with the web, confirm that the app makes sense, and add a mobile app once there is demand for it. Nothing has to be rebuilt, and both versions work with the same data.
Summary
A web app is fast, accessible and easy to update. A PWA adds the convenience of a phone app without the stores. A native app offers full access to phone features and visibility in the stores. The right choice comes from who will use the app, where and how often. We will be happy to go through how your users will use the app and recommend a solution that makes sense for them.