| Price from | $13/mo | $5/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 10 |
| Spec score · Email marketing tools | 9.4 (#2) | 8.5 (#43) |
| Spec score · Email Marketing Software | 9.0 (#10) | 8.2 (#74) |
| A/B testing | Yes | Yes |
| API | Mailchimp exposes open Marketing and Transactional APIs authenticated with OAuth or API keys. | Mumara ONE provides API access for sending and platform operations, plus webhooks for real-time event notifications. |
| Email automation | Yes | No |
| Founded | 2001 | 2012 |
| Free plan | Yes | Yes |
| Landing pages | Yes | Yes |
| Security | Mailchimp says its SOC 2 reports cover security, availability and processing integrity, and it maintains ISO 27001 certification and a VPAT. | Mumara states that public-facing endpoints use TLS 1.2+ and that production databases, backups and stored credentials are encrypted at rest using AES-256 or equivalent. |
| Audience segmentation | Yes | No |
| Support | Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers. | Mumara says sales questions, partnerships and support escalations receive a response within one business day. |
