Mailchimp

Mailchimp is a web-based email and SMS marketing platform for businesses and organizations that market to customers via newsletters, promotions, and automated messaging.

Key capabilities include:

• Email and SMS campaigns with templates, scheduling tools, and list management for ongoing marketing programs
• Marketing automations (including multi-step flows on higher tiers) to trigger messages based on customer activity
• A/B testing and optimization (Standard and above), plus multivariate testing and comparative reporting on Premium
• Audience segmentation and reporting to analyze engagement and improve targeting over time

Pricing: Freemium with Free, Essentials, Standard, and Premium plans. Free includes $0, up to 250 contacts and 500 monthly sends (limits reduced in January 2026). Paid tiers start at approximately $13/month (Essentials, 500 contacts), $20/month (Standard, 500 contacts), and $350/month (Premium, 10,000 contacts), with pricing that scales by contact count. SMS and transactional email are available as add-ons.

Notable for its use of real-time behavior data and AI tools for campaign creation and optimization, plus broad support for integrations and an API for syncing audience data and automating workflows. Mailchimp has been owned by Intuit since 2021.