True that. But even offline business have apps that can make their operations accessible from any location. Transport companies have apps where you can book for vehicle seats. And most people don't know how to use a website. They find it easier using apps.
It is very true that making use of application is more easier for customers to access a business but it also cost a lot of money to set up such apps. It all depending on the level of financial status of any business which would make it possible for them to create an app.