The decision to build a native app is usually made before anyone examines whether it is necessary. Someone senior observes that competitors have one, or that customers are on phones, and the requirement arrives fully formed. But a mobile web experience and a native app cost very different amounts, carry very different maintenance burdens, and only one of them requires app store approval for every change. It is worth ten minutes of examination.
There are things only a native app can do well, and if you need any of them the decision is made. Reliable operation without connectivity, where the user creates and edits data offline and it synchronises later. Background processing that continues when the app is closed. Push notifications that arrive reliably. Deep hardware access - Bluetooth peripherals, barcode scanning at speed, biometric authentication, precise location over long periods. If your field engineers work in basements and warehouses, or your product depends on a device talking to hardware, build the app.
There is also a distribution argument that is legitimate but often overstated: an icon on a home screen is a durable presence that a bookmark is not. That matters when you expect frequent, habitual use. It matters much less when the honest usage pattern is a few times a year, and an app used twice a year is an app that gets deleted when storage runs low - or worse, one the user has to reinstall and re-authenticate at the exact moment they needed it.
What a modern mobile web experience does perfectly well: everything transactional. Browsing, searching, forms, checkout, dashboards, account management, document upload, payments. It works on every device immediately, it is discoverable by search engines, it requires no installation step - which is where a substantial share of users abandon - and you can ship a fix in minutes rather than waiting on review. For most B2B products and a great many consumer ones, this is the whole requirement.
The cost difference is not marginal. An app means two platforms to build or a cross-platform framework to maintain, developer accounts, signing certificates, store listings, privacy declarations, a release process, and support for older OS versions your users have not upgraded. It means every fix travels through review. And it means the work does not end at launch - the platforms release annually and an unmaintained app degrades and is eventually removed. Budget for the second year, not just the first.
The middle option worth knowing about is a progressive web app: a website that can be installed to the home screen, works offline for cached content, and on Android can receive push notifications. It gets you the icon and some of the offline behaviour at close to web cost. Support on iOS is meaningfully weaker than on Android, so it works best when you know your users skew Android - which, for a large part of the Indian market, they do.
The test we would apply: write down the three things users will do most often, and ask whether any of them requires the device rather than the network. If none does, build the mobile web experience first and let real usage tell you whether an app is warranted. You will have shipped in a fraction of the time, and if the app turns out to be justified, you will build a much better one knowing what people actually do.
