Begin with the task, not the platform
If customers need to find you, understand a service and make a booking, a well-designed mobile website may cover the essential journey. If they perform frequent tasks, rely on device capabilities or expect a personalized logged-in experience, a mobile app may add real value.
Ask how often people will return
Apps ask users to download, install and keep a product on their phone. That is a meaningful commitment. A website is often easier to discover and share. Think about frequency, convenience and whether a push notification or device feature truly matters.
Know what is behind the screens
Payments, authentication, location, chat, reporting and custom databases can make either option complex. Two projects with similar-looking interfaces can require very different engineering effort.
A sensible way to decide
Sketch the main customer journey. Create a simple prototype. Test whether the most valuable action works smoothly. Then choose the platform that supports it without unnecessary cost.