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Comparison

Teams vs Lark

Teams and Lark both land on Depends.

Lark

larksuite.com

Depends
Confidence: Medium

Buy it if you're a small or mid-size team that wants chat, docs, and tasks in one cheap AI workspace instead of four subscriptions.

Read the full report

Teams versus Lark
CompareTeamsLark
VerdictDependsDepends
Best forMicrosoft 365 organizationsSmall teams consolidating chat, docs, and tasks
Who it's not forSmall teams wanting dead-simple chat . use Slack or DiscordTeams already happy with Slack plus Notion
PrivacySeveral recent CVEs disclosed, including a 9.6-rated authentication flaw; ransomware crews actively abuse Teams.⁷No known public vulnerabilities found in the sources reviewed.16
Support qualityNo evidence in reviewed sourcesNo support evidence in reviewed sources.
Public sentimentSentiment is split: users praise bundled chat and meetings but frequently complain about bugs, errors, and clunky usability.⁴Reviews are positive but sparse: 4.6/5 on G2 (195 reviews) and 4.0 on Trustpilot (13), with users praising fast adoption and less tool-switching.12
Biggest gotchaCVE-2026-33823 rated 9.6; patch immediately, don't delay updates.⁷Guess: all-in-one means lock-in . migrating chat, docs, and workflows out later is painful.11

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

Pick Lark when

  • Small teams consolidating chat, docs, and tasks
  • Budget-conscious teams wanting built-in AI
  • Teams tired of app-hopping across tools
  • Startups replacing multiple subscriptions

When Lark is not a fit

  • Teams already happy with Slack plus Notion
  • Enterprises needing mature integrations and admin controls
  • Buyers who want a large, proven user base
  • Anyone needing deep third-party ecosystem support

Sources

  1. Microsoft Teams Pricing for Business . Microsoftmicrosoft.com
    official
  2. Microsoft Teams Pricing for Enterprise . Microsoftmicrosoft.com
    official
  3. Microsoft Teams . Gartner Reviewsgartner.com
    review
  4. Read Customer Service Reviews of teams.microsoft.com . Trustpilottrustpilot.com
    review
  5. What is your opinion about Microsoft Teams? . Reddit r/softwarereddit.com
    review
  6. Microsoft Teams: An Honest Review by a Competitor (2026) . Pumblepumble.com
    review
  7. NVD-CVE-2026-33823 . NISTnvd.nist.gov
    security
  8. Hackers abuse Microsoft Teams in ransomware campaign . Cybersecurity Divecybersecuritydive.com
    security
  9. Microsoft Teams relay servers abused in DragonForce ransomware attack . SecurityWeeksecurityweek.com
    security
  10. Microsoft Teams . Wikipediaen.wikipedia.org
    news
  11. Context-Aware AI Workspace for Teams | Larklarksuite.com
    official
  12. Lark Reviews 2026: Details, Pricing, & Features - G2g2.com
    review
  13. Lark: Details, Reviews, Pricing, & Features - CheckThat.aicheckthat.ai
    review
  14. Lark Reviews | Trustpilottrustpilot.com
    review
  15. Best AI Work Management Software in 2026 - Hivehive.com
    news
  16. Lark product security pagelarksuite.com
    security