ConvertKit

Kit is an email-list platform used as a source from which an email list can be exported before importing it into another email platform.

Klaviyo is a marketing automation platform and B2C customer relationship management (CRM) service that provides email, SMS, and WhatsApp messaging along with customer data, segmentation, and analytics for ecommerce businesses. It is developed by Klaviyo, Inc. and includes AI-powered features (branded K:AI Agents) to support personalization and campaign automation.

Mailchimp is an email and marketing automation platform originally developed by Rocket Science Group and acquired by Intuit in 2021. It provides tools for creating, sending, and analyzing email and SMS campaigns, managing audiences, and building landing pages and ads. The service also offers data-driven and AI-powered features for personalization and content generation.

Corjl is a web-based platform that provides editable digital templates and a browser-based editor, enabling designers and online sellers to create, sell, and deliver customizable digital and printable goods. It is commonly used by independent designers and marketplace sellers to let customers personalize items without separate design software.

Beehiiv is a newsletter platform that provides tools to create, grow, and monetize email newsletters and accompanying websites. It includes subscriber management, analytics, monetization features, and templates to build newsletters and sites without coding.