Slack with your Users - Speak to your app's users entirely within Slack

Froged - One click solution providing easy-to-use marketing, sales and support services to turn website visitors into happy customers.

Conversity - Easiest way to manage Facebook Messenger chats

Keep Your Friends Close - A free e-book about maximizing Customer Lifetime Value

Avochato - Text messaging for your business.

Intercom on Customer Engagement - A book on how to create messages that drive engagement