| Price from | $13/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 2 |
| Spec score · Email marketing tools | 9.4 (#2) | 7.9 (#94) |
| Spec score · Email Marketing Software | 9.0 (#10) | 7.3 (#154) |
| API | Mailchimp exposes open Marketing and Transactional APIs authenticated with OAuth or API keys. | Sendy's API uses HTTP POST to integrate programmatically with a website or application. |
| Automation | Marketing Automation Flows automate campaigns and can contain up to 200 flows on higher plans. | Autoresponders can send drip sequences at chosen intervals, annual emails, or one-off emails on a specified date. |
| Free plan | Yes | No |
| Integrations | Mailchimp advertises more than 300 integrations, including Shopify, WooCommerce, Canva, Zapier, Salesforce, WordPress, Stripe and QuickBooks Online. | The site says Sendy works with Zapier and mentions third-party integrations such as WordPress, Magento, and Joomla. |
| Support | Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers. | The site directs users to troubleshooting information and offers support by email; Sendy users are asked to include their license key. |