Shopify is the biggest competitor for WooCommerce. Shopify is a completely different platform. It has a different approach as well. Shopify does not require any coding and has a drag-and-drop interface.
Shopify is more expensive, coming in at $29/month for their basic package while WooCommerce starts at $0/month. So it’s really up to you what platform suits your needs best!
WooCommerce also offers extensions that make the site even more customizable than Shopify does with all of its themes. Pricing depends on which extensions are chosen but they’re not as pricey as some other ecommerce platforms such as Big Commerce or Magento (which can cost anywhere from $199-$699 per month).