Every year we get a few inbound requests that start with "we need a mobile app." Most of the time the right answer is a better website, not an app. We send those clients away. It is bad for our short-term revenue and good for our long-term reputation.
The test we use is simple. Would your typical user open the app at least once a week, without being prompted, for at least six months? If the answer is no, you do not need an app. You need a good mobile website. Apps that do not clear that bar get downloaded once, opened twice, and deleted. The download count looks nice in a quarterly review. The retention number is abysmal.
The reason a website beats an underused app is that the app has ongoing costs the website does not. App maintenance is expensive. Every iOS release breaks something. Every Android version requires testing. Every framework upgrade is work. App store review processes create deployment friction. Two stores instead of one means double the compliance work.
The businesses that should build an app have a specific set of traits. They have a use case that requires capabilities a website does not have — push notifications for genuinely time-sensitive things, offline mode, camera/scanner/GPS/Bluetooth access, or payments where the app store's infrastructure actually helps.
They also have the retention shape. A service people use weekly or daily. A product where re-engagement matters. A workflow that benefits from being one tap away on the home screen. Not a marketing brochure. Not a dashboard that users check once a quarter. Not a booking tool they use twice a year.
If your use case clears both bars, mobile app development is the right investment and the ROI is real. If it does not, invest that budget in your website, your content, and your customer-facing automation. The returns will be better.
The worst outcome is building an app, shipping it, getting the download number on the quarterly slide, and then quietly abandoning it two years later when the platform updates break it and nobody wants to pay to fix it. That graveyard is enormous. Save yourself the listing.