Verified comparison

Slack is 100% cheaper
than Zulip

$0/mo (Free) vs Zulip Self-hosted Basic at $35/mo for 10 seats ($3.50/seat) — covering 67% of the 9 compared capabilities.

Save $420 / yearVisit Slack ↗

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.

Zulip basis

Self-hosted Basic plan at $35/mo ($3.50/seat × 10 seats), the cheapest paid plan.

Slack basis

Free: 0 USD/monthly.

The short version

Zulip costs $35/mo on the Self-hosted Basic plan at 10 seats, monthly billing. We found 1 assessed alternative that is cheaper in this scenario; 0 of them cover at least 75% of the 9 compared capabilities.

Capability comparison

Slack covers 67% of the 9 capabilities compared against Zulip. ✓ native · ◐ via integration · ✗ not found.

CapabilitySlackZulip
App integrations✓✓
SAML single sign-on↑ Business+✓
Compliance exports & audit logs↑ Business+✓
Self-hosted deployment✗✓
Channels & group messaging✓✓
Threaded conversations✓✓
Audio/video calls & screen sharing✓◐
Guest & external collaboration✓✓
AI search & summaries✓◐

What you give up

Capabilities Zulip has that Slack lacks.

  • SAML single sign-on — Sign in through your company's SAML single sign-on.
    Missing from Slack.
  • Compliance exports & audit logs — Export message history and audit logs for compliance.
    Missing from Slack.
  • Self-hosted deployment — Run the chat platform on your own infrastructure.
    Missing from Slack.

Price at your volume

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

UsageZulipSlack
3 seats$10.50/moSelf-hosted Basic$0/mocheaperFree
10 seats$35/moSelf-hosted Basic$0/mocheaperFree
25 seats$87.50/moSelf-hosted Basic$0/mocheaperFree

Plans & pricing, side by side

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

Slack
FreeFree
Pro$8.75/seat/mo
Business+$18/seat/mo
Enterprise+Contact sales
Zulip
Zulip Cloud FreeFree
Zulip Cloud Standard$8/seat/mo
Zulip Cloud Plus$12/seat/mo
Self-hosted FreeFree
Self-hosted Basic$3.50/seat/mo
Self-hosted Business$8/seat/mo
Self-hosted EnterpriseContact sales

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Frequently asked

How much cheaper is Slack than Zulip?

100% cheaper in our scenario (10 seats, monthly billing): $0/mo on Free vs $35/mo on Self-hosted Basic. That is $420 a year.

What does Slack lack compared with Zulip?

SAML single sign-on, Compliance exports & audit logs, Self-hosted deployment — 3 of the 9 compared capabilities.

When were these prices checked?

Zulip: 2026-10-28; Slack: 2026-10-26 — on the official pricing pages.

Who switched

Anonymous: no account, no email, no IP stored. Reports are shown once a switch has 3 or more and never change ranking or order — alternatives are computed from prices and capabilities only.

Sources & freshness

All Zulip alternatives