CalDAV servers
CalDAV server implementations tested with Chiri.
Legend
Section titled “Legend”| Symbol | Meaning |
|---|---|
| ✅ Supported | Supports a good chunk of iCalendar features and is compatible with Chiri |
| 🟡 Limited | Supports a limited subset of iCalendar features, but should still work with Chiri |
| 🤷 Best effort | Unable to test directly, but support is provided where possible |
| 🚫 Unsupported | Not compatible with Chiri |
Managed servers
Section titled “Managed servers”| Server | Support | Notes |
|---|---|---|
| Fastmail | ✅ | Task support is not officially documented or surfaced in their UI, but their CalDAV server exposes VTODO. |
| Fruux | ✅ | The web UI for Fruux only supports Priority, Due Date, and Description. Setting a Due Date in the web UI also creates a reminder with the same value. |
| Google Calendar | 🚫 | Google does not support the VTODO component type in their CalDAV implementation. |
| iCloud | 🚫 | Apple switched to a proprietary format for Reminders after macOS 10.15 / iOS 13, which is incompatible with Chiri. |
| Infomaniak | 🤷 | Cannot test directly as the platform is available to EU residents only. |
| Mailbox.org | ✅ | — |
| Migadu | ✅ | Task support is not officially documented or surfaced in their UI, but their CalDAV server exposes VTODO. |
| Purelymail | ✅ | Task support is not officially documented or surfaced in their UI, but their CalDAV server exposes VTODO. |
| Runbox | ✅ | Task support is not officially documented or surfaced in their UI, but their CalDAV server exposes VTODO. |
Self-hosted servers
Section titled “Self-hosted servers”| Server | Support | Notes |
|---|---|---|
| Baikal | ✅ | Both Digest and Basic authentication are supported. |
| Mailcow | ✅ | — |
| Nextcloud | ✅ | Requires the Tasks app to be installed. An optional Login Flow is available for quick setup. |
| OpenCloud | ✅ | Uses the Radicale CalDAV server internally. |
| Radicale | ✅ | — |
| RustiCal | ✅ | An optional Login Flow is available for quick setup. |
| Stalwart | ✅ | — |
| Vikunja | 🚫 | Proved unstable in testing. Chiri will show a warning when connecting to a Vikunja server. |
| Xandikos | ✅ | — |