| Price from | $1/mo | $1.58/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | — | Yes |
| Plans published | 3 | 7 |
| Spec score · Business Email Hosting | 8.0 (#14) | 8.5 (#8) |
| Founded | 1988 | 2014 |
| Headquarters | Montabaur, Germany | Schachen, Switzerland; 100% remote company |
| Security | IONOS says its email plans include spam filtering, with virus scanning and customizable blacklists and whitelists available. | Migadu says email traffic to and from its service and within the service is encrypted, and its privacy policy lists secure data centers, encrypted transmission, access controls, and monitoring as safeguards. |
| Support | IONOS advertises 24/7 expert support by phone, chat, or email and a personal consultant. | Migadu offers email and ticket support, can help with domain DNS and email client setup, and does not offer phone or chat support. |
