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.

Yotpo helps brands collect product reviews that build social proof, crucial for driving sales. With AI-powered review widgets, Yotpo can easily gather high-quality product reviews that influence customer purchasing decisions. Yotpo's partner integrations allow brands to display reviews and star ratings across social media and search engines like Google as well.

Smile.io powers reward programs for 30,000 merchants across the globe, making it the most popular eCommerce rewards platform in the world. Create a mobile-friendly program that rewards your customers with points, VIP status, and referral bonuses.

Zendesk is a customer support tool. It's got 2 main features: ticketing and knowledge base. Ticketing: Zendesk gathers customer queries in one place where you can manage and respond to customer questions efficiently. Knowledge base allows you to create an FAQ section to guide your customers.

Tapcart has been called the "Shopify for mobile apps" and it's drag-and-drop platform let brands customize their mobile app including layout, product detail pages, integrate checkout options, include product reviews, and even add other branded content (i.e., blogs, lookbooks, videos, live video, and more). Tapcart also lets merchants sync directly from Shopify in realtime so inventory, products, and collection are all up-to-date.