Does My Business Need a Website, a Mobile App or Both?

Most businesses need a website first, because a website is how new customers find you on Google, in AI answers and through links shared on social media, and it works on every device without an install. A mobile app becomes worth building when a meaningful group of customers comes back often, when speed and convenience drive repeat purchases, or when you need phone features such as notifications, the camera, location or offline access. Many growing businesses end up with both, the website to win customers and the app to keep them.

Why the website almost always comes first

A website does something an app cannot. It can be found by people who have never heard of you. Google indexes websites, AI assistants read them, and every link shared in WhatsApp, LinkedIn, email or a social post opens one. Nobody installs an app from a brand they do not know yet, so the website is where trust is built.

A good website also costs less to start, reaches every device and browser, updates instantly without store approval, and can be improved continuously for search and conversion. For most service businesses, professional firms, local businesses and B2B companies, a fast, well structured website that ranks on Google is the most valuable digital asset they can own.

When a mobile app makes sense

An app earns its place on a customer's phone when it makes something they do often noticeably easier. Strong signals that you need one include these.

• Frequent use. Customers order, book, check, track or log something weekly or more often.
• Repeat purchases. Saved details, order history and one-tap reordering increase spending per customer.
• Notifications matter. Order updates, reminders, offers and alerts drive real value or revenue.
• Device features. You need the camera, GPS, Bluetooth, biometrics, health data or offline access.
• A product that is the app. Social, productivity, fitness, finance, games and marketplace products often live on the phone.
• Loyalty programmes. Points, rewards and member-only offers work best when they live in a customer's pocket.

If none of these apply, an app will probably struggle to get installed and kept, and the budget is usually better spent on the website and its visibility.

Website versus app at a glance

The middle ground, progressive web apps

A progressive web app, or PWA, is a website that behaves like an app. It can be added to the home screen, work offline for some features, load very quickly and, on most platforms, send notifications. It does not need store approval and it can still be found on Google. PWAs are a good choice when you want an app-like experience for returning customers without building and maintaining separate iOS and Android apps. They are less suitable when you need deep device features or a presence in the app stores for discovery.

Native, cross-platform or web app?

If you decide on an app, there are three main ways to build it.

• Native apps are built separately for iOS (Swift) and Android (Kotlin). They offer the best performance and access to every device feature, at the highest cost.
• Cross-platform apps use frameworks such as Flutter or React Native to build both apps from one codebase. They suit most business apps and cost less to build and maintain.
• Web apps and PWAs run in the browser. They are the fastest to ship and update, with some limits on device features and store presence.

The right choice depends on your features, budget and timeline. A short discovery phase usually makes it clear.

Questions to decide which you need

1. How often will a typical customer use it? Daily or weekly suggests an app, while monthly or once suggests a website.
2. How will new customers find you? If the answer is Google, social links or AI assistants, you need a strong website.
3. Do you need notifications, offline access or device features? If yes, an app or PWA.
4. Will customers save details, reorder or track things? Apps make this frictionless.
5. Can you support two products? Apps need ongoing updates for new OS versions, store policies and devices.
6. What do your competitors and customers expect? In some categories, such as banking, delivery and fitness, an app is now expected.

If you build both, make them work together

The best results come when the website and app support each other.

• The website ranks and converts newcomers, then invites them to download the app for faster ordering, tracking or rewards.
• Smart app banners and app links let mobile visitors open or install the app in one tap.
• Deep links take people from emails, ads and web pages straight to the right screen in the app.
• Shared accounts mean customers can start on the web and continue in the app.
• SEO and ASO run together, so you are found on Google and in the stores for the same needs.

How to make your website and app easy to find

A website is found through SEO. That means fast pages, a page for each service, answers to customers' questions and the technical basics in place. Start with our free SEO checker and our guide on how to improve SEO.

An app is found through app store optimisation. That means the right keywords in your title and metadata, screenshots that sell the benefit and strong ratings. Our guides on improving ASO and getting more app downloads explain how.

What each one takes to run after launch

The build is only part of the commitment. A website needs hosting, security updates, content updates and ongoing SEO, and it can be improved a page at a time whenever you like.

An app needs more. Every major iOS and Android release can require updates. Store policies change and must be followed. Each update goes through store review before users see it. You need crash monitoring, user support, and an ongoing plan to keep users engaged, because an app that is not opened is eventually deleted. There are also store developer accounts and, if you sell digital goods inside the app, store commission on those sales. None of this makes apps a bad idea. It simply means an app should earn its place with clear, repeated value for your customers.

How to test demand for an app before you build it

You can learn a great deal before writing a line of app code.

1. Look at your data. How many customers return weekly or monthly? How many buy repeatedly? Frequent, repeat behaviour is the strongest predictor that an app will be used.
2. Ask customers. A short survey or a few conversations reveal whether people would install an app and which feature would make them use it.
3. Build a fast mobile web experience first. If customers already use your mobile site heavily for repeat tasks, an app can make those tasks faster.
4. Launch a waiting list. A landing page describing the app's main benefit, with a sign-up form, measures real interest.
5. Start with the one feature that matters. A focused first version that does one thing very well beats a large app that does many things adequately.

Performance and accessibility on both

Whichever you build, speed and accessibility decide whether people use it. Websites should pass Core Web Vitals on mobile, and apps should open quickly and respond instantly to taps. Both should support larger text sizes, screen readers, sufficient colour contrast and clear labels on buttons and fields. Good accessibility widens your audience, and on the web it also supports SEO, because search engines read many of the same signals.

Examples by business type

• Restaurant or cafe. Website first, with menu, booking and location pages that rank locally. An app makes sense for frequent ordering or a loyalty programme.
• Clinic or salon. Website first for discovery and booking. An app helps if patients or clients book often and benefit from reminders and records.
• E-commerce brand. A fast, search-optimised store first. An app pays off once repeat customers are a large share of revenue.
• B2B services. A strong website is usually enough. A client portal or web app may help existing clients.
• Software or marketplace startup. Often both from early on, with the product in the app and the website driving discovery and sign-ups.

Common mistakes

• Building an app before anyone knows the brand, which leads to an expensive app with few installs.
• Making the app a copy of the website with no extra reason to install it.
• Neglecting the website after launching an app, which cuts off new customer discovery.
• Launching an app without ASO, so it never appears in store search.
• Underestimating maintenance, because apps need regular updates to keep working and ranking.

Written by the Proklisi editorial team

Proklisi builds websites and apps, runs SEO, ASO and social media, and creates SI influencers for brands. Everything here comes from work we do for clients every week. About us or talk to the team