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Head-to-head · Team Chat Apps

Slack vs Lark

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Slack #2 in Team Chat Apps 9.3/10 Free plan Free plan✓ 2 of 2 features Visit Slack
Lark #7 in Team Chat Apps 8.6/10 Free plan Free plan✓ 1 of 2 features Visit Lark

Slack leads on 0 checks, Lark on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSlack · 9.3/10
  • Free planboth
  • Most featuresSlack · 2 of 2

Slack scores higher on our rubric for team chat apps: 9.3 against 8.6 out of 10; our editors rank them #2 and #7.

Slack is the better fit for integration-heavy teams. Lark is the better fit for teams needing an all-in-one workspace.

  • Slack fits best

    Integration-heavy teams

  • Lark fits best

    Teams needing an all-in-one workspace

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Slack 9.3/10 Visit ↗ Lark 8.6/10 Visit ↗
At a glance
Editor score 9.3 8.6
Ranking #2 in Team Chat Apps #7 in Team Chat Apps
Best for Integration-heavy teams Teams needing an all-in-one workspace
Pricing model Free plan + paid Free plan + paid
Starting price $7.25/user/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud, Desktop, Mobile
Platforms Web, Windows, macOS, Linux, iOS, Android Web, Windows, macOS, Linux, iOS, Android
Support Docs · 24/7 Email, Docs
Compliance SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML, 2FA SOC 2
Integrations 2,600+ integrations 7 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Slack 2/2 · Lark 1/2
Channels ✓ ✓
Guest access ✓ (best) Not checked yet
Specs
Message history Limited Limited
Integrations Salesforce, Jira, Google Drive, ChatGPT, Asana, Miro, Notion, Zoom, GitHub, GitLab, PagerDuty, Box, Dropbox, Zendesk, Freshdesk, HubSpot Exchange, Outlook, Google Calendar, Gmail, AnyCross, Lark Developer, Lark Base
Supported platforms web, windows, macos, linux, ios, android, api web, Windows, macOS, Linux, iOS, Android
Maximum members Not checked yet Not checked yet
Our review
Pros
  • Channels, direct messages, huddles, guests, and Slack Connect
  • Broad integrations with Salesforce, Jira, GitHub, and other tools
  • Workflow automation, AI features, and enterprise administration
  • Combines chat, meetings, documents, calendars, tasks, and approvals
  • Supports web, desktop, and mobile platforms, including Linux
  • Includes translation, automation, APIs, and app integrations
Cons
  • The Free plan includes only 90 days of message history
  • Paid access starts at $7.25 per user per month on annual billing
  • Enterprise+ requires contacting sales for pricing
  • Starter is limited to 20 users and 18 months of message history
  • Paid plans are billed annually at their listed per-user rates
  • Advanced security and compliance controls are limited to Enterprise
Our verdict

Slack organizes workplace communication around public and private channels, direct messages, shared spaces, and Slack Connect external messaging. It is aimed at teams that need structured conversations alongside searchable message and file…

Read the review →

Lark brings team messaging, video meetings, email, calendars, documents, cloud storage, approvals, knowledge management, and no-code workflows into one workspace. Its chat features include group conversations, threaded discussions, chat…

Read the review →
  1. SlackTeam Chat Apps 9.3Free plan
  2. LarkTeam Chat Apps 8.6Free plan

Strengths and trade-offs

  • Slack — where it wins

    • Channels, direct messages, huddles, guests, and Slack Connect
    • Broad integrations with Salesforce, Jira, GitHub, and other tools
    • Workflow automation, AI features, and enterprise administration

    Where it doesn't

    • The Free plan includes only 90 days of message history
    • Paid access starts at $7.25 per user per month on annual billing
    • Enterprise+ requires contacting sales for pricing

  • Lark — where it wins

    • Combines chat, meetings, documents, calendars, tasks, and approvals
    • Supports web, desktop, and mobile platforms, including Linux
    • Includes translation, automation, APIs, and app integrations

    Where it doesn't

    • Starter is limited to 20 users and 18 months of message history
    • Paid plans are billed annually at their listed per-user rates
    • Advanced security and compliance controls are limited to Enterprise
  • Slack9.3/10 · Free plan

    A capable team-chat hub for integration-heavy teams, with limited free history.

    Visit SlackFull verdict →
  • Lark8.6/10 · Free plan

    A broad collaboration workspace with valuable free access and paid tiers for scale.

    Visit LarkFull verdict →

More comparisons

All team chat apps comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update