Service - Customer service issues solved for you, on demand, for free.
Cash App - The easy way to send, spend, bank, and invest.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Facebook Pay - Send money to your friends via Messenger
LiveMessage from Salesforce - Make mobile messaging a cornerstone of customer service
PayPal.Me - Request money using your own personalized URL.