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Comparison · Collab

SOGo vs Tana

A side-by-side editorial comparison of SOGo and Tana — release velocity, themes, recent moves, and the top alternatives to consider.

SOGo vs Tana: at a glance

FeatureSOGoTana
SectorCollabCollab
Velocity score2.57.5
Sparks · 30d02
Top themesgroupware, self-hosted, security, webmailambient-ai, voice-agent, meeting-capture, note-taking
Last editorial update1mo ago7d ago
WebsiteVisit →Visit →

What is SOGo?

SOGo's release notes have become a vulnerability disclosure channel with a version number attached.

SOGo is a self-hosted groupware suite — webmail, calendaring and contacts — maintained by Alinto. Four of the last six releases exist primarily to fix security vulnerabilities: XSS through malicious mail, SQL injection, OpenID impersonation, script execution via theme and hint query parameters. The newest, 5.12.10, fixes four more and states that all previous versions are affected, with CVE identifiers still pending at publication.

Read the full SOGo trajectory →

What is Tana?

Tana races toward ambient AI assistant — voice commands now execute silently without interrupting you

Tana has shipped three major voice and agent capabilities in quick succession: a multitasking background agent that handles multiple requests simultaneously while you are in a meeting, auto-detection of unscheduled external meetings, and most recently a Hey Tana trigger that silently executes commands without entering a voice session at all. A native Calendar view also landed in the same release. The product has moved far past note-taking into ambient meeting assistant territory.

Read the full Tana trajectory →

SOGo vs Tana: editorial side-by-side

S
SOGo
COLLAB
2.5

SOGo's release notes have become a vulnerability disclosure channel with a version number attached.

◆ Current state

SOGo is a self-hosted groupware suite — webmail, calendaring and contacts — maintained by Alinto. Four of the last six releases exist primarily to fix security vulnerabilities: XSS through malicious mail, SQL injection, OpenID impersonation, script execution via theme and hint query parameters. The newest, 5.12.10, fixes four more and states that all previous versions are affected, with CVE identifiers still pending at publication.

◆ Where it's heading

The pattern is a codebase whose input-handling surface is being systematically probed, largely by the community reporting to the project's bug address, and patched in batches. Release numbering has stopped being reliable as a timeline — 5.12.7 shipped after 5.12.8 — so version order tells you nothing about what a deployment contains. The two non-security releases in this window were both regression repairs from the security releases that preceded them, which is the cost of shipping fixes at this cadence.

◆ Prediction

Given four security batches in five months and CVE identifiers still being assigned retroactively, another batch on the same cadence is the most likely next release, with a regression patch following it.

T
Tana
COLLAB
7.5

Tana races toward ambient AI assistant — voice commands now execute silently without interrupting you

◆ Current state

Tana has shipped three major voice and agent capabilities in quick succession: a multitasking background agent that handles multiple requests simultaneously while you are in a meeting, auto-detection of unscheduled external meetings, and most recently a Hey Tana trigger that silently executes commands without entering a voice session at all. A native Calendar view also landed in the same release. The product has moved far past note-taking into ambient meeting assistant territory.

◆ Where it's heading

Every recent release adds ambient presence — Tana wants to run in the background of your workday, not only when you choose to open it. The combination of silent command execution, meeting capture, and calendar integration points toward a product that acts as a persistent AI colleague rather than a structured note-taking tool.

◆ Prediction

Tighter integration between calendar events and AI briefs is the likely next move, along with expansion of which external tools the background agent can act in. Whether Tana can hold the ambient-assistant position depends on how reliably the background execution performs across different meeting platforms.

Alternatives to SOGo and Tana

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 SOGo or Tana.

See all SOGo alternatives → · See all Tana alternatives →

Recent activity from SOGo and Tana

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 8d agoTanaHey Tana just does it, a Calendar, and a new Home
  2. 19d agoTanaMultitasking voice agent, natural language search and daily briefs
  3. 26d agoTanaA clearer transcript, and proposals you can fix in place
  4. 28d agoTanaTana notices the meetings you didn't schedule
  5. 1mo agoSOGoFour more vulnerabilities patched; all prior versions affected
  6. 1mo agoTanaAI chat goes further before hitting usage limits
  7. 1mo agoTanaAsk the AI to pin things for you
  8. 3mo agoSOGoPatch undoes 5.12.8 regressions in preferences and mail display
  9. 4mo agoSOGoTwo CVEs fixed for PostgreSQL user sources
  10. 4mo agoSOGoFour vulnerabilities: XSS, SQL injection, OpenID impersonation
  11. 5mo agoSOGoTOTP silently disabled for new users, now fixed
  12. 6mo agoSOGoInjection fixes in hint queries, theme queries and categories

Frequently asked questions

What is the difference between SOGo and Tana?

They serve adjacent needs but don't currently overlap on shipped themes. Tana is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 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 SOGo better than Tana?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Tana is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 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 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.

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.