
Reviewers call Klaviyo expensive far more often than Mailchimp. Ecommerce teams keep paying because the real contest is not software cost - it is what each subscriber is worth.

Mailchimp is the cheaper, friendlier default. Klaviyo makes its higher bill defensible when a store can turn live shopping behavior into timely, profitable messages.
A field guide to the twelve email marketing platforms worth a business's money in 2026 - from Mailchimp's all-rounder ecosystem and Klaviyo's ecommerce muscle to Brevo's generous free tier, ActiveCampaign's deep automation, and beehiiv's creator-first newsletter engine. Email still returns roughly $36 to $42 for every dollar spent, and the tool you pick decides how much of that you actually keep.