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Comparison · Collab
Mattermost vs Smartsheet
A side-by-side editorial comparison of Mattermost and Smartsheet — release velocity, themes, recent moves, and the top alternatives to consider.
Mattermost vs Smartsheet: at a glance
What is Mattermost?
Mattermost v12 puts user-scoped permissions, private models and audit trails on every agent action.
Mattermost's feed spent five weeks on security and resilience essays; the last product release was v11.11's data-spillage exposure report. v12 changes that: agents now act with the requesting user's access rather than a shared service account, can run on private models, and leave an audit trail per action. The announcement is short on detail, but the pitch is clear and aimed at defense and regulated buyers.
What is Smartsheet?
Smartsheet introduces a Contributor seat tier; rest of the stream is portal nav.
Almost everything in Smartsheet's tracked stream is portal navigation — Community link, Learning Center, customer stories, archived release notes index. The one substantive entry is the Contributor seat reaching general availability on April 30, positioned as 'best-in-class collaboration value' — i.e., a new pricing tier for users who participate in but don't author work.
Mattermost vs Smartsheet: editorial side-by-side
Mattermost
6.3COLLAB
Mattermost v12 puts user-scoped permissions, private models and audit trails on every agent action.
◆ Current state
Mattermost's feed spent five weeks on security and resilience essays; the last product release was v11.11's data-spillage exposure report. v12 changes that: agents now act with the requesting user's access rather than a shared service account, can run on private models, and leave an audit trail per action. The announcement is short on detail, but the pitch is clear and aimed at defense and regulated buyers.
◆ Where it's heading
The essays on zero trust, data spillage and out-of-band response were building toward this. Mattermost is positioning its AI agents as governed, mission-safe tools inside its classified-environment niche rather than competing on agent breadth. The in-house Matty Code agent shows it also uses agents to build the product itself.
◆ Prediction
Expect v12.x follow-ups that publish admin controls and audit-log detail for agent actions, plus more deployment-focused content aimed at defense buyers.
Smartsheet
3.8COLLABPM
Smartsheet introduces a Contributor seat tier; rest of the stream is portal nav.
◆ Current state
Almost everything in Smartsheet's tracked stream is portal navigation — Community link, Learning Center, customer stories, archived release notes index. The one substantive entry is the Contributor seat reaching general availability on April 30, positioned as 'best-in-class collaboration value' — i.e., a new pricing tier for users who participate in but don't author work.
◆ Where it's heading
Smartsheet is using packaging, not features, as its visible motion right now: a Contributor seat sits below full-editor tiers and is built to expand seat counts inside accounts without forcing every collaborator onto a paid editor license. The rest of the stream offers no product-feature signal worth interpreting.
◆ Prediction
Expect Contributor-seat positioning to drive a B2B-style up-sell motion (more activated seats, eventually more upgrades) and follow-on packaging refinement around external collaborators and viewers. Real product moves are likely happening but not visible in this stream.
Alternatives to Mattermost and Smartsheet
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 Mattermost or Smartsheet.
SiYuan
SiYuan 3.8.9 reaches RC, adding AI-agent extraction of images embedded in PDFs.
KACE
KACE extends its PHP2SHELL fix to the SDA deployment appliance, six days after disclosure.
AFFiNE
AFFiNE's canaries stay on upkeep: a Swift Collections bump follows CVE and migration fixes.
Teable
Teable's Structured Query v2 now reports across multi-hop relations, with a strict mode against SQL.
Readwise
Readwise splits its bundle into Reader-only and Highlights-only plans and renames its first app.
See all Mattermost alternatives → · See all Smartsheet alternatives →
Recent activity from Mattermost and Smartsheet
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoMattermostMattermost v12 Cross Guard: managed cross-domain transfers
- 6d agoMattermostMattermost v12: Agents Are Doing the Work. Now Control What They Can See. ⚡
- 15d agoMattermostWhere the Response Team Talks After the Gateway Falls
- 23d agoMattermostThe Conversation Is the Operation: Defending Collaboration Infrastructure Like an Intelligence Asset
- 23d agoMattermostTwo Outages, One Vendor, One Lesson in Resilience Planning
- 23d agoMattermostOur Newest Top Contributor Is an AI Agent: 4 Months of Matty Code
- 6mo agoSmartsheetContributor seat, now generally available! ⚡
- 6mo agoSmartsheetContributor seat, now generally available!
- 6mo agoSmartsheetFeedback portal link (not a release)
- 6mo agoSmartsheetBe inspired.
- 6mo agoSmartsheetLearning Center portal link (not a release)
- 6mo agoSmartsheetArchived release notes index page
Frequently asked questions
What is the difference between Mattermost and Smartsheet?
They serve adjacent needs but don't currently overlap on shipped themes. Mattermost is currently shipping more aggressively (velocity 6.3 vs 3.8), 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 Mattermost better than Smartsheet?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Mattermost is currently shipping more aggressively (velocity 6.3 vs 3.8), 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 Mattermost?
Top Mattermost alternatives in Collab are ranked by recent ship velocity. Browse the "Mattermost alternatives" section above for the current picks, or visit /alternatives/mattermost for the full list with editorial commentary on each.
What are the best alternatives to Smartsheet?
Top Smartsheet alternatives in Collab are ranked by recent ship velocity. Browse the "Smartsheet alternatives" section above for the current picks, or visit /alternatives/smartsheet for the full list with editorial commentary on each.