OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Froged - One click solution providing easy-to-use marketing, sales and support services to turn website visitors into happy customers.
Ocamba - An all-in-one marketing solution designed to help you increase your revenue with push notifications, web & mobile analytics, and ad exchange technology.
Keep Your Friends Close - A free e-book about maximizing Customer Lifetime Value
Braze - Braze is an engagement platform that empowers growth by helping marketing teams to build customer loyalty through mobile, omni channel customer experiences.
ChatWoot - Open-source omnichannel customer engagement platform