Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Team Chat Apps

Slack vs Flock

  • 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
Flock #8 in Team Chat Apps 8.5/10 Free plan · 30-day trial Free planFree trial✓ 2 of 2 features Visit Flock

Slack leads on 0 checks, Flock 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
  • Free trialonly Flock

Slack scores higher on our rubric for team chat apps: 9.3 against 8.5 out of 10; our editors rank them #2 and #8.

Slack is the better fit for integration-heavy teams. Flock is the better fit for teams wanting free chat plus work tools.

  • Slack fits best

    Integration-heavy teams

  • Flock fits best

    Teams wanting free chat plus work tools

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 ↗ Flock 8.5/10 Visit ↗
At a glance
Editor score 9.3 8.5
Ranking #2 in Team Chat Apps #8 in Team Chat Apps
Best for Integration-heavy teams Teams wanting free chat plus work tools
Pricing model Free plan + paid Free plan + paid
Starting price $7.25/user/mo —
Free plan ✓ ✓
Free trial — 30 days
Deployment Cloud, Desktop, Mobile Cloud, Mobile, Browser extension
Platforms Web, Windows, macOS, Linux, iOS, Android Web, Windows, macOS, Linux, iOS, Android, Chrome extension
Support Docs · 24/7 Email, Live chat, Docs · 24/7
Compliance SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML, 2FA SOC 2, SSO/SAML, 2FA
Integrations 2,600+ integrations 60+ integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Slack 2/2 · Flock 2/2
Channels ✓ ✓
Guest access ✓ ✓
Specs
Message history Limited Limited
Integrations Salesforce, Jira, Google Drive, ChatGPT, Asana, Miro, Notion, Zoom, GitHub, GitLab, PagerDuty, Box, Dropbox, Zendesk, Freshdesk, HubSpot Google Drive, Google Calendar, GitHub, Trello, Dropbox, Twitter, Bitbucket, Asana, Jira, Zapier, Zoom, Microsoft Dynamics 365, Todoist, GitLab, Zendesk, Freshdesk, OneDrive, Mailchimp
Supported platforms web, windows, macos, linux, ios, android, api web, Windows, macOS, Linux, iOS, Android, Chrome extension, API
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
  • Free Starter plan includes channels, calls, search, files, and task tools
  • Works across web, desktop, mobile, and Chrome extension
  • Integrates with Trello, Asana, GitHub, Drive, Jira, and more
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 limits searchable history to 10,000 messages
  • Starter includes 10 public channels and 5 GB per team
  • Guests are charged at the member rate after 90 days
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 →

Flock combines direct messaging, group conversations, public and private channels, guest access, calling, file sharing, and searchable workspace content in one team communication application. It is aimed at organizations that want chat…

Read the review →
  1. SlackTeam Chat Apps 9.3Free plan
  2. FlockTeam Chat Apps 8.5Free plan · 30-day trial

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

  • Flock — where it wins

    • Free Starter plan includes channels, calls, search, files, and task tools
    • Works across web, desktop, mobile, and Chrome extension
    • Integrates with Trello, Asana, GitHub, Drive, Jira, and more

    Where it doesn't

    • Starter limits searchable history to 10,000 messages
    • Starter includes 10 public channels and 5 GB per team
    • Guests are charged at the member rate after 90 days
  • Slack9.3/10 · Free plan

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

    Visit SlackFull verdict →
  • Flock8.5/10 · Free plan · 30-day trial

    A broad team chat workspace with a capable free Starter plan and useful work tools.

    Visit FlockFull 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