Why does a business need a mobile app?
When work happens away from a desk and the phone is the only tool present, when a customer or member uses the service often enough to want it on a home screen, or when something has to reach a person the moment it happens. A mobile web app or PWA covers most of those cases without an app store. A native app is worth its cost when it needs the camera, offline storage or notifications at a level a browser cannot provide.
