Overview
Privy and ActiveCampaign are not real competitors. Privy is a popup tool for small Shopify stores. ActiveCampaign is an enterprise-grade automation platform with CRM. Most Shopify stores looking at Privy would find ActiveCampaign overkill.
For Shopify stores that want good email automation without enterprise complexity, Sequenzy at $29/mo or Omnisend with email and SMS are better middle-ground options.