Guru vs Slack

Two HR tools side by side: what each does, what it costs and who it suits.

The verdict Side by side Plans and pricing Who each is for Other options

The verdict

On the data we hold, Slack comes out ahead. Here is why, point by point.

What the data says

Both have an API and an MCP server, so either works with AI employees.
In our HR ranking, Slack places 3 and Guru 9 of 27.

Side by side

Guru and Slack compared
At a glance	Guru	Slack
Starts at	Not known yet	€8.25/mo
Free plan	Not known yet	Yes
API	Yes	Yes
MCP server	Yes	Yes
Links	Visit	Visit

Plans and pricing

Guru

Pricing not in our catalogue yet.

Slack

FreeFree forever: 90 days of message history, up to ten apps, 1:1 meetings.Free
ProEUR 8.25 per user per month when paying monthly; unlimited history and apps; 50% off for the first three months.€8.25/mo/seat
Business+EUR 18 per user per month when paying monthly; advanced AI and SAML single sign-on; 50% off for the first three months.€18/mo/seat

Prices as the vendors list them. They change often; the final price is on their sites.

Who each is for

Choose Guru if…

Larger organisations, and the HR, support, sales and operations teams in them, that want one governed source of knowledge so staff and AI assistants answer from verified, permission-aware information.

Visit Read the review

Choose Slack if…

Teams of any size that need real-time messaging, channels and quick decisions in one place, and want chat connected to their CRM, project tools and alerts.

Visit Read the review

Other options worth a look

Tool
Miro
Bring teams together on an infinite whiteboard to brainstorm, diagram and run workshops in real time.
HR
From $8/mo yearlyFree plan
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Google Docs
Write and edit documents collaboratively in the browser with instant sharing and version history.
HR
From €6.80/moFree plan
Sign up on Google Docs
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Otter.ai
Automatically transcribe and summarise meetings across Zoom, Google Meet and Teams with searchable AI chat.
HR
From $8.33/mo yearlyFree plan
Sign up on Otter.ai
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Trainual
Centralises standard operating procedures, quizzes and onboarding materials in a searchable knowledge base.
HR
From $3/mo yearlyAffiliate link
Sign up on Trainual
Tool
Bloom Growth OS
The Bloom Growth Operating System: scorecard, meetings, goals and issues on one platform, the software half of the EOS/Traction category.
HR
From $299/mo
Sign up on Bloom Growth OS
Tool
Confluence
Creates a shared workspace and wiki for team documentation, knowledge, and collaboration with built-in AI.
HR
From $5.42/moFree plan
Sign up on Confluence