XFlow
Back-in-stock alerts and restock email campaigns for Shopify stores
#1 Marketing and Email Freemium Shopify
Platforms Shopify WooCommerce Wix BigCommerce
Rekomi
Affiliate and referral programmes with managed payouts for BigCommerce, WooCommerce, Shopify and Wix
#2 Marketing and Email Subscription ShopifyWooCommerceWix