I already have an app but it lacks some features & you have to add it.
Features to be added on the user side:
Home screen (Image banner slider, after that categories scrolling horizontally, after that products to shop)
Page to contact us with a button that directs users to send us messages on WhatsApp.
Option to add image banners.
Option to add featured products on the home page.
Adding multiple images in a single product (Like Amazon, Flipkart)
Changing images from the admin panel of already added products.