Citadel vs Groups.io
Citadel
citadel.orgGroups.io
groups.ioSide by side
| Figure | Citadel | Groups.io |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 3 |
| Spec score · Mailing List Management Software | 8.3 (#4) | 6.9 (#6) |