SendPulse maximizes the core metric of e-mail marketing - newsletter open rate - atomatically. We collect tons of data about billions of subscribers in our system and predict the best time and channel for each subscriber when to deliver the next message to him. In a result our customers see 50% open rate increase in average.

Polymail is the email platform for teams. By combining email with real time collaboration and integrating it with your team's other tools, Polymail allows everyone to work together seamlessly, move faster, and be more productive.

Quokka shows retargeted messages to those who ignored your email, so they never miss something important from you.