Tricount - Manage and share expenses with friends
Service - Customer service issues solved for you, on demand, for free.
Kittysplit - The easiest way of sharing costs with a group of friends
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
ihatemoney - Manage your shared expenses, easily
LiveMessage from Salesforce - Make mobile messaging a cornerstone of customer service