Should you create a mobile app for your website?

Question

Mobile development

Or can you access your site from your smartphone? Why are mobile applications of some sites created (not counting advertising and promotion)? When will you need to create a mobile application?

Answer 1

Worth it if you sell products with constant demand: groceries, pet supplies, etc.
Push notifications will save your business :)
In other cases, a mobile site is enough.
Those. A mobile site is the first introduction to your brand.
Mobile application - constant cooperation.