Verified comparison

Slack is an alternative
to Rocket.Chat

$0/mo (Free) vs Rocket.Chat at — — covering 90% of the 10 compared capabilities.

Same job. Way less money.

Comparison scenario

Every cheaper-than claim is tied to a defined scenario — never a bare list price.

Scenario

10 seats, monthly billing · USD · prices as observed on official pricing pages.

Rocket.Chat basis

plan at —, the cheapest paid plan.

Slack basis

Free: 0 USD/monthly.

The short version

We list 1 assessed alternative; Rocket.Chat's own price is not verified yet, so no cheaper-than claim is made.

Slack covers 90% of the 10 capabilities compared against Rocket.Chat. ✓ native · ◐ via integration · ✗ not found.

Capability	Slack	Rocket.Chat
Channels & group messaging	✓	✓
Threaded conversations	✓	✓
Audio/video calls & screen sharing	✓	✓
Guest & external collaboration	✓	✓
App integrations	✓	✓
Workflow automation	✓	✓
SAML single sign-on	✓	✓
Compliance exports & audit logs	✓	✓
Self-hosted deployment	✗	✓
AI search & summaries	✓	✓

Capabilities Rocket.Chat has that Slack lacks.

Self-hosted deployment — Run the chat platform on your own infrastructure.
Missing from Slack.

The same comparison recomputed at three sizes. Plan caps change who is cheapest.

Advertised prices in USD as observed on the official pricing pages — per-seat and transaction-fee plans are marked.

Slack

Rocket.Chat

What does Slack lack compared with Rocket.Chat?

Self-hosted deployment — 1 of the 10 compared capabilities.

When were these prices checked?

Rocket.Chat: 2026-08-31; Slack: 2026-08-26 — on the official pricing pages.