Fazley RabbiMost businesses need a website first. A website tells people who you are and how to reach you. A web app lets people log in and get work done in the browser, such as booking, ordering, tracking or managing records. A mobile app is installed from an app store and lives on the phone. Build a web app when people need to complete tasks, and a mobile app only when you need what installed apps do best: frequent daily use, deep use of phone features or offline work, and a strong reason for people to keep it on a crowded phone.
What each one is
Website
Pages of information: services, products, prices if you publish them, articles and contact details. Visitors mostly read, then call, message or fill in a form. Google can find and index it, which makes it your main tool for being discovered by new customers.
Web app
Software used through a browser. Customers or staff log in and do things: place repeat orders, check delivery status, record attendance, manage stock. It works on phones and computers without installation, and every user gets the latest version the moment you update it.
Mobile app
An app built for Android, iPhone or both, downloaded from the app stores. It can use phone features deeply, such as the camera, location, notifications and offline storage, and it sits on the home screen as a constant reminder. But each update goes through the stores, and users must choose to keep the app installed.
Comparison at a glance
| Website | Web app | Mobile app | |
|---|---|---|---|
| Main purpose | Inform and get enquiries | Let users complete tasks | Frequent use on the phone |
| Found through Google | Yes | Not the parts behind a login | Mostly through app stores |
| Installation | None | None | Required |
| Updates | Instant | Instant | Through store review and user updates |
| Platforms to build for | One | One | Often two |
| Phone features and offline use | Limited | Moderate | Strong |
Questions that point to the answer
- What will people do? If they mostly read and then contact you, build a website. If they log in to complete tasks, build a web app.
- How often will they use it? Daily or weekly use by the same people can justify an app. Occasional use rarely does; few people install an app to order something twice a year.
- Do you need phone features? Scanning barcodes in a warehouse, tracking a delivery rider's location or working without signal in the field may point to an app.
- Who are the users? Your own staff can be asked to install an app. Customers have to be persuaded, and many phones in Bangladesh are short on storage space.
- What can you maintain? A mobile app usually means two platforms, store accounts and regular updates. Budget for that, not only for the first build.
A sensible order for most businesses
Take a hypothetical pharmacy chain in Khulna. It might start with a website so people can find branches and opening hours. Next, a web app for staff to check stock across branches. Only later, if customers reorder medicines regularly, would a customer-facing app be worth considering.
Building in this order means each step is useful on its own, and you learn what users actually do before spending on an app. There is also a middle option: a progressive web app, which is a web app that can be added to the home screen and work partly offline, without going through the app stores.
When a mobile app really is the answer
- Field staff need to work offline and sync their data later.
- The product depends on notifications, location or the camera.
- Customers use the service often enough to keep the app installed.
- You already have a working web app and a clear reason to go further.
Next steps
Write down who your users are, what they need to do and how often. If you are building a product to sell, start small with a first version; see building an MVP without overspending. If you are weighing a ready-made tool against building your own, read custom software or ready-made. And if you would like to talk through your list, get in touch or see my web development service.