Slack vs Zulip: what each really costs

Team size

Billing

Slack

No plan for this billing option

No paid plan to compare for this billing option.

Zulip

No plan for this billing option

No paid plan to compare for this billing option.

10 peopleSlackZulip
Entry paid planNo plan for this billing optionNo plan for this billing option
Vendor price
Monthly cost
Annual cost
Per user / year
Billing commitmentNot recordedNot recorded
Minimum seatsNone statedNone stated
Free planYesYes
Free trialNot statedNot stated

Calculated by SpecEntry from official vendor prices. Taxes and optional add-ons are not included. Open each product page for every plan and the official source.

Slack vs Zulip pricing questions

How much do Slack and Zulip cost?
Slack paid plans start at $7.25/user/month (Pro (annual)). Zulip paid plans start at $6.67/user/month (Cloud Standard Annual).
Is Slack or Zulip cheaper for 5 users?
Zulip is cheaper for 5 users: $400.20 per year on Cloud Standard Annual, against $435 per year for Slack on Pro (annual). That is $34.80 less per year, before tax.
Is Slack or Zulip cheaper for 10 users?
Zulip is cheaper for 10 users: $800.40 per year on Cloud Standard Annual, against $870 per year for Slack on Pro (annual). That is $69.60 less per year, before tax.
Is Slack or Zulip cheaper for 25 users?
Zulip is cheaper for 25 users: $2,001 per year on Cloud Standard Annual, against $2,175 per year for Slack on Pro (annual). That is $174 less per year, before tax.
Do Slack and Zulip have a free plan?
Yes, both list a free plan.