ActiveCampaign is a powerful email marketing tool with advanced features like automation, personalization, and CRM capabilities, but it has a steep learning curve and is geared towards larger eCommerce shops and intermediate-to-advanced users. tinyEmail, on the other hand, is designed for beginners and small eCommerce shops, offering a simpler and more user-friendly experience, as well as eCommerce-specific features like promotional email templates and one-click email automations. While tinyEmail has limitations in terms of automation capabilities, it is still a viable option for those who want a plug-and-play solution, especially Shopify users who can use its free plan. Ultimately, the choice between ActiveCampaign and tinyEmail depends on the user's needs and level of expertise.