Shopify is a commerce platform that allows anyone to set up an online store and sell their products. It's the go-to eCommerce platform for young direct-to-consumer brands. It's ease of use and setup is what's most attractive to merchants, but also the incredibly vast Shopify app store.
CM Commerce is an email marketing solution that seamlessly integrates with your store. Instantly sync customer & order data to dynamically build accurate customer profiles and list segments. Take the stress out of email marketing and marketing automation with ready-to-go automation recipes.
Klaviyo is the best in class email marketing solution for eCommerce. It's powerful because it connects to your store, and you can create awesome customer segments based on past purchasing behaviors, customer preferences, and even future predictions of spending.