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Comparison · Collab
Tana vs SOGo
A side-by-side editorial comparison of Tana and SOGo — release velocity, themes, recent moves, and the top alternatives to consider.
Tana vs SOGo: at a glance
What is Tana?
Tana is building a meeting layer into its graph, and the AI now acts instead of asking.
Almost everything shipped since early July is about meetings: a pre-meeting hub card holding join, capture and RSVP-grouped attendees; an always-on-top nudge that now fires for internal Tana calls as well as Zoom, Meet and Teams; one-click conversion of a scheduled Tana call into an external audio capture; and meeting creation moved to the top of the Today page. Alongside it, meeting agents got an org-level voice picker with audition playback. The one non-meeting release lets the AI pin and unpin docs, spaces and agents directly, with no proposal to approve first.
What is SOGo?
SOGo's 5.12 line has become a CVE conveyor belt while the team's attention sits on SOGo 6.
Six releases in three months, and the majority exist to fix vulnerabilities: XSS via crafted mail, SQL injection, JavaScript injection through hint and theme query parameters, impersonation when OpenID is paired with a non-matching user source, and two CVEs affecting PostgreSQL user sources. Releases 5.12.6 and 5.12.9 exist purely to undo regressions the security fixes introduced.
Tana vs SOGo: editorial side-by-side
Tana
6.3COLLAB
Tana is building a meeting layer into its graph, and the AI now acts instead of asking.
◆ Current state
Almost everything shipped since early July is about meetings: a pre-meeting hub card holding join, capture and RSVP-grouped attendees; an always-on-top nudge that now fires for internal Tana calls as well as Zoom, Meet and Teams; one-click conversion of a scheduled Tana call into an external audio capture; and meeting creation moved to the top of the Today page. Alongside it, meeting agents got an org-level voice picker with audition playback. The one non-meeting release lets the AI pin and unpin docs, spaces and agents directly, with no proposal to approve first.
◆ Where it's heading
Tana is moving from the place notes about meetings land to the place meetings happen. Each release closes another gap between the calendar event and the captured artifact, and the internal-meeting nudge shows Tana now hosts calls rather than only recording other people's. The pin change is small but points the same way on the agent side: the assistant is being trusted to execute rather than propose.
◆ Prediction
Expect the meeting surface to extend past the call itself into automatic post-meeting artifacts routed into the graph, and more AI actions that apply immediately rather than queuing a proposal.
SOGo
0.0COLLAB
SOGo's 5.12 line has become a CVE conveyor belt while the team's attention sits on SOGo 6.
◆ Current state
Six releases in three months, and the majority exist to fix vulnerabilities: XSS via crafted mail, SQL injection, JavaScript injection through hint and theme query parameters, impersonation when OpenID is paired with a non-matching user source, and two CVEs affecting PostgreSQL user sources. Releases 5.12.6 and 5.12.9 exist purely to undo regressions the security fixes introduced.
◆ Where it's heading
Alinto declared a feature freeze on 5.12 to concentrate on SOGo 6, and the changelog reflects it — the one new capability in the window, a REST API in 5.12.2, was explicitly a pre-committed sponsored deliverable the team felt obliged to honour. What is left is a hardening cycle on a large groupware surface, with each fix carrying real regression risk into webmail and calendar.
◆ Prediction
Expect the 5.12.x line to keep producing security releases with regression follow-ups, and no new functionality until SOGo 6 surfaces.
Alternatives to Tana and SOGo
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Tana or SOGo.
Jellyfin
Jellyfin drops the 10. prefix and puts 12.0 through a three-candidate preview.
PhotoPrism
PhotoPrism swapped in an ONNX vision pipeline, then opened the library to 360° media at 16K.
Immich
Immich is four release candidates into v3 with every feature note published somewhere else.
EGroupware
Two branches, one deadline: 23.1 security coverage ends August 15th and 26.x is the only exit.
File Browser
File Browser is shutting down — the repo archives on 2026-09-01 and no security fixes follow.
Recent activity from Tana and SOGo
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9d agoTanaAsk the AI to pin things for you
- 13d agoTanaStart, schedule, or capture external meetings right from Today
- 18d agoTanaNever miss an upcoming Tana meeting
- 20d agoTanaPresent and capture, in one click
- 23d agoTanaA pre-meeting hub ⚡
- 25d agoTanaA voice for your meeting agents
- 2mo agoSOGoPatch undoes 5.12.8 regressions in preferences and mail display
- 2mo agoSOGoTwo CVEs fixed for PostgreSQL user sources
- 2mo agoSOGoFour vulnerabilities: XSS, SQL injection, OpenID impersonation
- 4mo agoSOGoTOTP silently disabled for new users, now fixed
- 5mo agoSOGoInjection fixes in hint queries, theme queries and categories
- 9mo agoSOGoAttachments can display above the message body
Frequently asked questions
What is the difference between Tana and SOGo?
They serve adjacent needs but don't currently overlap on shipped themes. Tana is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Tana better than SOGo?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Tana is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to Tana?
Top Tana alternatives in Collab are ranked by recent ship velocity. Browse the "Tana alternatives" section above for the current picks, or visit /alternatives/tana for the full list with editorial commentary on each.
What are the best alternatives to SOGo?
Top SOGo alternatives in Collab are ranked by recent ship velocity. Browse the "SOGo alternatives" section above for the current picks, or visit /alternatives/sogo for the full list with editorial commentary on each.