Colanode
Groupware
Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative to Slack, Notion).
Slowing down
Apache-2.0
SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.
SOGo is an open-source groupware project, with 2.1k GitHub stars and a health score of 79/100. It committed 145 times in the last twelve months across 12 of those months, and its status is actively maintained. Licence: LGPL-2.1. It has real momentum, so treat it as a live competitor rather than a stale repository.
| Status | Actively maintained — Committed within the last 45 days. |
|---|---|
| Last commit | 2026-08-13 |
| Days since last commit | 4 |
| Commits, last 3 months | 14 |
| Commits, last 12 months | 145 |
| Months with activity | 12 of 12 |
| Last release | 2026-08-13 |
| Archived | No |
| Licence | LGPL-2.1 |
| Category | Groupware |
Health score combines commit recency, twelve-month commit volume, months with activity, release recency and archive state. Metadata refreshed August 2026.
Copyleft (GPL, AGPL, MPL): derivative work must stay open. AGPL also covers software offered over a network, which blocks most closed SaaS wrappers.
This matters most when you plan to sell a hosted version. A permissive licence means anyone — including a competitor with more capital — can do the same, so your defensibility has to come from distribution, support or data, not from the code.
SOGo is shipping code consistently, so a buyer comparing your product will find a maintained free option. Price and position against the total cost of self-hosting it, not against the paid incumbent's list price.
The clearest opening in the dataset. Low open-source competition usually means either a genuinely underserved need or a market too small to attract volunteers — validate demand before assuming the former.
Actively maintained. SOGo recorded 145 commits over the last twelve months, with activity in 12 of those months and 14 commits in the last quarter. Last commit: 2026-08-13. Last release: 2026-08-13. Committed within the last 45 days.
SOGo is published under LGPL-2.1. Copyleft (GPL, AGPL, MPL): derivative work must stay open. AGPL also covers software offered over a network, which blocks most closed SaaS wrappers.
13 open-source implementations, 2 of them actively maintained, led by Colanode at 5.0k stars. Saturation score 32/100 — Open. Thin or poorly maintained open-source coverage.
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Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative to Slack, Notion).
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