Smooch.io for Facebook Messenger - Message your customers from Slack, Front, a bot or anywhere!
Shopify Upsell Bundles App - Shopify app to Create Bundles, Packages and Sets with discounts by the most simple and efficient...
VECA - Your eCommerce assistant
In Cart Upsell - Boost revenue and increase average order size with the #1 upsell app for Shopify stores.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
ReConvert - Page builder to design thank you page that cross sell & upsell