| Price from | $13/mo | $8.25/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 12 |
| Spec score · Email marketing tools | 9.4 (#2) | 8.6 (#36) |
| Spec score · Email Marketing Software | 9.0 (#10) | 8.0 (#103) |
| A/B testing | Yes | Yes |
| API | Mailchimp exposes open Marketing and Transactional APIs authenticated with OAuth or API keys. | The product supports adding and managing subscribers remotely with an API key. |
| Automation | Marketing Automation Flows automate campaigns and can contain up to 200 flows on higher plans. | Users can automate follow-ups, segment subscribers, and personalize communication. |
| Email automation | Yes | Yes |
| Free plan | Yes | Yes |
| Integrations | Mailchimp advertises more than 300 integrations, including Shopify, WooCommerce, Canva, Zapier, Salesforce, WordPress, Stripe and QuickBooks Online. | Listed integrations include contact form plugins such as Contact Form 7, Gravity Forms, WP Forms, Ninja Forms, Fluent Forms, and Forminator, plus WooCommerce and Easy Digital Downloads. |
| Audience segmentation | Yes | Advanced segmentation can combine multiple conditions using AND or OR logic. |
| Subscriber limit | 500 | 10000 |
| Support | Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers. | The pricing FAQ says free users receive WordPress.org community support and Pro users receive direct priority help-desk support. |