How does Shopify work?
Today, over a million brands and companies use Shopify (an eCommerce platform) to create their eCommerce websites, display their products and items, increase sales, analyze their marketing metrics, organize orders/shipping/payments, etc. It is a subscription-based service that furnishes merchants with the tools they need to set up an online store and sell in person with Shopify POS.

You can start a simple Shopify store and have it running within a day. Also, you can customize and build your online stores with unique features and even fully personalize them per your brand.

Hundreds of thousands of entrepreneurs from more than 175 countries rely on Shopify to assist them in selling their products. With apps like PickyStory on the Shopify app store, merchants can optimize and customize their stores until it's the perfect place to sell their goods.

link - https://www.appsrhino.com/blogs/what-is-shopify-everything-you-need-to-know