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Rocket.Chat vs Teams

Rocket.Chat and Teams both land on Depends.

Rocket.Chat

rocket.chat

Depends
Confidence: Medium

Buy if you're a government, defense, or regulated organization needing air-gapped, sovereign messaging with RBAC and E2EE.

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Rocket.Chat versus Teams
CompareRocket.ChatTeams
VerdictDependsDepends
Best forGovernment and defense agenciesMicrosoft 365 organizations
Who it's not forSmall teams wanting a simple Slack replacementSmall teams wanting dead-simple chat . use Slack or Discord
PrivacyStrong posture: end-to-end encryption, RBAC, air-gapped deployment, WCAG 2.1 AA conformance; one published CVE.⁹Several recent CVEs disclosed, including a 9.6-rated authentication flaw; ransomware crews actively abuse Teams.
Support qualityNo evidence in sources reviewedNo evidence in reviewed sources
Public sentimentUsers average ~4.3/5, praising solid chat, channels, and document sharing while criticizing search and Slack-parity gaps.⁵Sentiment is split: users praise bundled chat and meetings but frequently complain about bugs, errors, and clunky usability.14
Biggest gotchaMost tier pricing is hidden behind 'contact sales' . no public numbers in sources²CVE-2026-33823 rated 9.6; patch immediately, don't delay updates.

Pick Rocket.Chat when

  • Government and defense agencies
  • Critical infrastructure and healthcare
  • Teams replacing Skype for Business Server
  • Orgs needing on-prem or air-gapped deployment

When Rocket.Chat is not a fit

  • Small teams wanting a simple Slack replacement
  • Non-technical teams with no admin or ops capacity
  • Anyone who needs polished search or huddles
  • Companies without compliance or data-sovereignty requirements

Pick Teams when

  • Microsoft 365 organizations
  • Enterprises with IT admin staff
  • Chat + meetings + calling in one bundle
  • Frontline workforce communication

When Teams is not a fit

  • Small teams wanting dead-simple chat . use Slack or Discord
  • Non-Microsoft shops; the bundle value disappears
  • Security-sensitive orgs wanting minimal attack surface
  • Teams without IT staff to manage policies and patching

Sources

  1. Rocket.Chat homepagerocket.chat
    official
  2. Rocket.Chat product security pagerocket.chat
    official
  3. RocketChat/Rocket.Chat on GitHubgithub.com
    official
  4. Introducing Secure CommsOS (blog)rocket.chat
    official
  5. Apple App Store reviewsapps.apple.com
    review
  6. Capterra reviewscapterra.ca
    review
  7. GetApp reviewsgetapp.com.au
    review
  8. checkthat.ai review aggregatecheckthat.ai
    review
  9. NVD CVE-2026-28514nvd.nist.gov
    security
  10. DLT white paper: Rocket.Chat for U.S. mission-criticaldlt.com
    news
  11. Microsoft Teams Pricing for Business . Microsoftmicrosoft.com
    official
  12. Microsoft Teams Pricing for Enterprise . Microsoftmicrosoft.com
    official
  13. Microsoft Teams . Gartner Reviewsgartner.com
    review
  14. Read Customer Service Reviews of teams.microsoft.com . Trustpilottrustpilot.com
    review
  15. What is your opinion about Microsoft Teams? . Reddit r/softwarereddit.com
    review
  16. Microsoft Teams: An Honest Review by a Competitor (2026) . Pumblepumble.com
    review