| Price from | $13/mo | $100/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 5 | 2 |
| Spec score · Email marketing tools | 9.4 (#2) | 8.8 (#22) |
| Spec score · Email Marketing Software | 9.0 (#10) | 8.3 (#69) |
| Spec score · AI Email Marketing Software | 8.8 (#7) | 8.2 (#13) |
| A/B testing | Yes | Yes |
| Analytics | Reporting includes campaign reports, send-time optimization, smart recommendations and engagement analytics. | Sendlane lists real-time data and analytics, ROI and conversion tracking, and machine-learning open predictability among its features. |
| API | Mailchimp exposes open Marketing and Transactional APIs authenticated with OAuth or API keys. | Sendlane provides JavaScript tracking and server-side APIs for custom ecommerce integrations and customer behavior and transaction data. |
| API documentation | Developer documentation includes API references, guides, integration guidance, webhooks and release notes. | The custom integration guide links to complete v2 API documentation and provides event references and integration guidance. |
| Automation | Marketing Automation Flows automate campaigns and can contain up to 200 flows on higher plans. | The pricing page lists pre-built funnels and behavior-, trigger-, and event-based marketing automation. |
| Company history | Mailchimp was founded in Atlanta in 2001 by Ben Chestnut and Dan Kurzius. | Sendlane's company story says the founders began building the product in 2013 and officially went all in on it in 2017. |
| Company size | LinkedIn lists Mailchimp as an Atlanta-based private company with 1,001–5,000 employees. | LinkedIn lists a company size of 51–200 employees. |
| Email automation | Yes | Yes |
| Email marketing | The product sends personalized email campaigns and provides campaign creation tools. | Plans include campaigns and newsletters, visual drag-and-drop and HTML email builders, templates, and multivariate testing. |
| Free plan | Yes | No |
| Headquarters | Atlanta, USA | San Diego, California, United States |
| Integrations | Mailchimp advertises more than 300 integrations, including Shopify, WooCommerce, Canva, Zapier, Salesforce, WordPress, Stripe and QuickBooks Online. | The pricing page advertises deep-data integrations for Shopify, WooCommerce, ClickBank, Miva, Smile.io, and OneClick, plus 2,000-plus apps through Zapier. |
| Notable product news | Mailchimp announced a Claude connector on May 18, 2026, adding Claude alongside ChatGPT for creating email and SMS campaigns. | Sendlane's blog announced an integrated product reviews feature for collecting, managing, and displaying customer reviews. |
| Praise: ease of use | G2 reviewers praise Mailchimp as easy to use with professional templates that make readable business emails quick to create. | G2's review summary says users praise ease of use and the ability to set up campaigns quickly. |
