| Price from | $13/mo | $7/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Plans published | 5 | 3 |
| Spec score · Landing Page Builders | 9.0 (#8) | 7.5 (#42) |
| Analytics | Reporting includes campaign reports, send-time optimization, smart recommendations and engagement analytics. | Umso describes its built-in analytics as privacy-first, requiring no setup and collecting the least amount of data necessary for insights. |
| Security | Mailchimp says its SOC 2 reports cover security, availability and processing integrity, and it maintains ISO 27001 certification and a VPAT. | Umso says its services are hosted on AWS, new sites have HTTPS enabled automatically, and critical interfaces require at least TLS 1.2; the policy page says it was last updated Oct. 1 2021. |
| Support | Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers. | Support chat is listed as available Monday to Friday, 9am–5pm PST and 09:00–17:00 CET, with documentation also available. |
