vioscale
Comparison

Lark vs Slack

On the evidence we track, Slack leads this comparison with a composite score of 89/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Lark full profile →Slack full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Attribute comparison across 2 tools
Attribute80Lark89SlackLeader
Vioscale score80 / 100low · 36%89 / 100medium · 51%
Options{"cloud":true}{"cloud":true}
LongUnified platform combining messaging, video meetings, documents, workflows, and project management. Brings teams, tools, and workflows into one place to work faster, save costs, and stay in sync.Slack is a cloud-based messaging and collaboration platform that enables teams to communicate, organize work, and integrate with tools across a unified workspace. Built-in AI capabilities and an extensive app ecosystem support businesses of all sizes.
Capabilities{"hosting":"cloud","sso_scim":true,"free_tier":true,"messaging":true,"api_access":true,"video_meetings":true,"max_participants":"500 for video meetings","compliance_controls":true,"recording_transcription":"recording_ai_notes"}{"hosting":"cloud","sso_scim":true,"free_tier":true,"messaging":true,"api_access":true,"screen_sharing":true,"video_meetings":true,"app_marketplace":true,"compliance_controls":true,"guest_external_access":true}
Count-2,600
List-[{"name":"Salesforce"},{"name":"Jira"},{"name":"Google Drive"},{"name":"ChatGPT"}]
Availability-{"primaryMarkets":["GB","US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}
Support{"ios":true,"web":true}{"ios":true,"mac":true,"web":true,"android":true,"windows":true}
Pricing{"type":"subscription","plans":[{"free":true,"name":"Starter","summary":"Free","features":["Team collaboration","20 users max","100 GB storage","1-on-1 video meetings","18 months message history","Unlimited real-time translation","1,000 automations/month","2,000 rows/table","Limited trial of Base AI"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"For small teams with simple communication needs","contactSales":false,"includedLimits":{"users":"20","storage":"100 GB","message_history":"18 months","automations_per_month":"1,000"}},{"free":false,"name":"Basic","summary":"$6/user/month billed annually","features":["Team collaboration","500 users max","5 TB storage (expandable)","1-on-1 video meetings","Unlimited message history","Unlimited real-time translation","1,000 automations/month","2,000 rows/table","Expanded trial of Base AI"],"commitment":"annual","components":[{"kind":"per_unit","unit":"user","amount":6,"period":"month","currency":"USD"}],"description":"For growing companies with basic collaboration needs","contactSales":false,"includedLimits":{"users":"500","storage":"5 TB","message_history":"Unlimited","automations_per_month":"1,000"}},{"free":false,"name":"Pro","summary":"$12/user/month billed annually","features":["Team collaboration","500 users max","15 TB storage (expandable)","500-participant video meetings","Unlimited message history","Unlimited real-time translation","50,000 automations/month","20,000 rows/table","Expanded trial of Base AI","Base advanced permissions","Security & organizational controls","Frontline solution compatible","Communication and collaboration permissions"],"commitment":"annual","components":[{"kind":"per_unit","unit":"user","amount":12,"period":"month","currency":"USD"}],"description":"For companies with comprehensive collaboration and management needs","contactSales":true,"includedLimits":{"users":"500","storage":"15 TB","message_history":"Unlimited","meeting_participants":"500","automations_per_month":"50,000"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, billed annually","features":["Team collaboration","Unlimited users","15 TB + 30 GB per user storage (expandable)","500-participant video meetings","Unlimited message history","Unlimited real-time translation","500,000 automations/month","50,000 rows/table","Expanded trial of Base AI","Base advanced permissions","Security & organizational controls","Frontline solution compatible","Communication and collaboration permissions","Single sign-on (SSO)","Advanced security & compliance controls"],"commitment":"annual","description":"For large companies with advanced security and organizational management needs","contactSales":true,"includedLimits":{"users":"Unlimited","storage":"15 TB + 30 GB per user","message_history":"Unlimited","meeting_participants":"500","automations_per_month":"500,000"}}],"addOns":[{"name":"AI Meeting Notes","components":[{"per":{"qty":1800,"unit":"notes"},"kind":"metered","amount":1699,"currency":"USD"}]},{"name":"Meegle Premium","components":[{"kind":"per_unit","unit":"user","amount":12,"period":"month","currency":"USD"}]},{"name":"Base automation expansion","components":[{"per":{"qty":50000,"unit":"automation runs"},"kind":"metered","amount":599,"currency":"USD"}]}],"summary":"Free to $12/user/month. Free Starter tier. Annual billing saves 16.6%.","currency":"USD","freeTier":true,"sourceUrl":"https://www.larksuite.com","retrievedAt":"2026-08-03T20:21:24.479Z","startingPrice":{"amount":6,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free forever","features":["90 days of message history","Up to 10 apps from Slack App Directory","1:1 audio and video meetings with screen sharing","1:1 external messages via Slack Connect","SAML-based single sign-on","SCIM user management","EMM integration support","Native data loss prevention","AI conversation summaries","Slackbot personal AI agent","AI workflow generation","AI search","AI daily recaps","AI file summaries"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"GBP"}],"description":"A simpler way to chat and collaborate","contactSales":false,"includedLimits":{"apps":"up to 10","message_history":"90 days"}},{"free":false,"name":"Pro","summary":"£7/user/month (£5.75/user/month billed annually)","features":["Unlimited message history","Unlimited app integrations","2,600+ apps in Slack App Directory"],"components":[{"kind":"per_unit","unit":"user","amount":7,"period":"month","currency":"GBP"},{"kind":"per_unit","unit":"user","amount":5.75,"period":"month","currency":"GBP"}],"description":"Drive productivity in one place","contactSales":false}],"summary":"From £0 (free tier) to £7/user/month (Pro). Free tier available.","currency":"GBP","freeTier":true,"sourceUrl":"https://slack.com","retrievedAt":"2026-08-05T14:23:07.180Z","startingPrice":{"amount":5.75,"period":"month","currency":"GBP"},"billingPeriods":["month","year"]}
Free tierYesYes
Modelfreemiumcommercial
Price levellowlow
Starting gbp65.75
TransparentYesYes
Status pageYesYes
Disclosure policy-Yes
GdprYesYes

Capabilities

Feature-by-feature on the axes that matter for collaboration software. “-” means undocumented, not absent.

Capability comparison for Collaboration Software
CapabilityLarkSlack
Modality
Messaging✓✓
Video meetings✓✓
Whiteboard--
Meetings
Screen sharing-✓
Recording / transcriptionRecording + AI notes-
Security
End-to-end encryption--
SSO / SCIM✓✓
Access
Guest / external access-✓
Compliance
Compliance controls✓✓
Deployment
HostingCloud onlyCloud only
Scale
Max participants500 for video meetings-
Ecosystem
App marketplace-✓
Public API / bot framework✓✓
Commercial
Free tier✓✓

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.

Lark vs Slack: an evidence-based comparison · Vioscale