| Price from | $13/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 1 |
| Spec score · Email marketing tools | 9.4 (#2) | 7.8 (#108) |
| Spec score · Marketing Automation Software | 9.3 (#2) | 7.8 (#63) |
| Spec score · Email Marketing Software | 9.0 (#10) | 7.2 (#159) |
| A/B testing | Yes | Yes |
| Analytics | Reporting includes campaign reports, send-time optimization, smart recommendations and engagement analytics. | The product page lists analytics, configurable dashboards, alert-based monitoring, scheduled reports, and data streaming to CDPs, BI tools, and adtech. |
| Email automation | Yes | Yes |
| Headquarters | Atlanta, USA | New York City, New York, United States |
| Integrations | Mailchimp advertises more than 300 integrations, including Shopify, WooCommerce, Canva, Zapier, Salesforce, WordPress, Stripe and QuickBooks Online. | Sailthru documentation describes Google Product Sync, the Content API, and content management system integrations for populating content feeds. |
| Security | Mailchimp says its SOC 2 reports cover security, availability and processing integrity, and it maintains ISO 27001 certification and a VPAT. | For Connect exports to Amazon S3, Sailthru says data is encrypted in transit with SSL and supports S3 default encryption at rest; it advises blocking public access to the bucket. |
| Audience segmentation | Yes | Yes |
| Support | Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers. | Sailthru documentation directs users to create a support ticket in the support portal, or contact their Zeta representative if they lack portal access. |
