Send email based on what people do (or don't do) on a web or mobile app.
Companies using Customer.io
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Why people like Customer.io
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Send segmented newsletters without bugging developers. Change transactional emails without re-deploying your app. Create lifecycle emails to activate more customers

Customer.io's Features
  • Segment in real-time with up to date data from your app. Email people who have spent at least $100 but haven't been back in a month.
  • Friendly editor lets anyone write emails
  • No lists to manage and you won't have to ask developers to export data for you.
  • Start a 5-email drip campaign automatically after someone is inactive for 30 days
  • Send a triggered email 47 minutes after someone abandons their cart
  • Track success by tying your emails to a conversion on your site
  • Send a one-time message to a customer tracking opens and clicks
  • Find out how people respond to the different types of emails you send
  • Check up on a customer by viewing site activity to see if they need help