What are some alternatives?
Segment - We make customer data simple.
Marketing Optimizer - Optimize conversion rates, increase lead-to-close ratio, and resell leads easily. Includes complete WordPress integration.
PieSync - Seamless two-way sync between your CRM, marketing apps and Google in no time
SendX - SendX (https://sendx.io) provides remarketing and retargeting tools for web businesses. You can use popups, landing pages, email, web push notification, automation workflows and FB / Google retargeting to drive more revenue.
Astronomer - Capture every user event and route them anywhere. Automatically
ActiveDEMAND - ActiveDEMAND is an integrated marketing platform for marketing agencies.