Amazon SES - Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
SmoochBot - Open source on-boarding bot for conversational apps
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Hotline - In-app chat,real-time engagement & self-service for your app