Ambassador - Referral Automation, Made Simple.
Aboardly - IFTTT for automated customer emailing
ReferralHero - Powerful referral marketing platform for honest marketers.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Friendbuy - Customer referral program software and email opt ins for ecommerce.
Customerjet - Resolve live chats faster by watching where users get stuck