We use Customer.io for transactional emails. I am a big fan--it pulls in all your events. We can send out emails on events that customers launch on the website and run drip campaigns. It is clean, and makes it easy to run A/B testings. It is very good for marketers as it doesn’t require technical skills. It is not meant for newsletter-style blasts.
Co-founder & CEO - One Month
Customer.io has the best ways to segment customers. We use Segment to send email analytics to Amplitude and Customer.io. Customer.io takes all that information, and then we can build different lists for customers who are on different plans, or who have used particular features. They have very good tools to do that, and then we send people very personalized marketing newsletters.
Co-founder & CTO - Mixmax
We tried to use Customer.io but we felt that it lacked on the user interface.
Co-founder & CEO - Recruitee
3%Stacklist Startups Are Using Customer.io
Customer.io is most popular among small to midsized B2C startups, with a well-defined marketing funnel and enough technical support on hand to manage the implementation and customization of this complex and powerful tool.
Customer.io’s basic (and free!) package includes 200 profiles and 400 monthly emails, and offers four upgrade possibilities with much greater capacity: $50 per month for 5,000 profiles and 10,000 emails; $250 per month for 50,000 profiles and 100,000 emails; $750 per month for 250,000 profiles and 500,000 emails; and finally $1,250 per month for 500,000 profiles and 1 million emails.
Visit the website: http://customer.io/