Bottom line Mailchimp is the best all-in-one for small business; Klaviyo is the best for e-commerce revenue; ConvertKit (Kit) is the best for newsletter creators and course sellers[1][2][3].

These three dominate email marketing, but picking wrong is easy because they look similar on the surface. The difference is in what each platform treats as its core: Mailchimp optimizes for broad marketing, Klaviyo for store revenue, and Kit for the creator-audience relationship.

Person typing an email on a laptop

At a glance

MailchimpKlaviyoConvertKit
Free tier500 contacts250 contacts10,000 subs
Paid from$13/mo$20/mo$15/mo
E-commerceGoodExcellentBasic
Creator featuresBasicLimitedExcellent
Best forGeneral marketingStoresCreators

Mailchimp

Mailchimp is the most versatile, with email, landing pages, forms, and basic automation in one place, starting at $13/mo[1]. It's the right pick for a small business that wants marketing without juggling multiple tools — though its price climbs with list size.

Klaviyo

Klaviyo is purpose-built for e-commerce: purchase-based segmentation, abandoned-cart flows, and revenue reporting out of the box[2]. It's pricier and overkill for a non-commerce audience, but for stores it typically pays for itself in recovered revenue.

ConvertKit (Kit)

Kit is the creator's tool, with the most generous free tier (10,000 subscribers), tag-based automation, and features for selling digital products[3]. It deliberately skips heavy e-commerce in favor of clean newsletters and simple automations.

The verdict

Choose Mailchimp for general small-business marketing, Klaviyo if you sell products, and Kit if you're growing a newsletter or audience.