Mailchimp

Klaviyo

Klaviyo is a marketing automation platform focused on e-commerce, combining email and SMS with deep store-data integration for personalized, behavior-driven campaigns. It is especially popular with Shopify stores.

ConvertKit

ConvertKit (now Kit) is an email marketing platform designed for creators — writers, YouTubers, podcasters — emphasizing simple automations, tagging, and monetization tools like paid newsletters. It favors plain-text, relationship-driven emails.

HubSpot

HubSpot is a customer platform combining CRM, marketing automation, sales pipeline management, and customer service tools into a single connected system. It is especially popular with small and mid-size businesses looking to consolidate multiple point solutions into one platform. Marketing Hub provides email campaigns, landing pages, and SEO tools, Sales Hub manages deal pipelines and sequences, and Service Hub handles support tickets and knowledge bases - all sharing the same underlying contact and company records so every team has a unified view of the customer. HubSpot's free CRM tier has been a major growth driver, letting companies start managing contacts and deals at no cost before upgrading to paid Hubs as their marketing, sales, or service needs grow more sophisticated.

MailerLite

MailerLite is an email marketing platform that lets creators and businesses build newsletters, automation sequences, landing pages, signup forms, and simple websites from one dashboard. Its drag-and-drop editor covers campaign design, while an automation builder handles triggered sequences like welcome series or abandoned cart flows. Beyond email, MailerLite includes tools to sell digital products and set up recurring paid subscriptions for newsletters, plus an AI writing assistant and a preference center for subscriber management. It integrates with WordPress, Shopify, Zapier, Canva, and other common marketing tools, and is used by more than 1 million creators and businesses according to the company.

EmailOctopus

EmailOctopus is an email marketing platform focused on simplicity and lower cost, letting small businesses and individual creators build and send newsletters and campaigns with a drag-and-drop editor, subscriber segmentation, and automation. It positions itself explicitly against pricier competitors, citing an example of $480/year for 100,000 subscribers versus roughly $1,620/year on Mailchimp's equivalent plan.

Beehiiv

Beehiiv is a modern newsletter platform built by former Morning Brew operators, focused on audience growth, referrals, and monetization (ads and subscriptions). It targets serious newsletter publishers.