Is Rocket.Chat cheaper than Slack Pro?

Yes. On their starting paid plans, Rocket.Chat is about 54% cheaper than Slack Pro — roughly $57 per seat per year.

Does Slack Pro have a free plan?

Slack Pro does not advertise an ongoing free tier as of pricing checked June 2026. Pricing starts at $8.75/user/mo monthly.

Yes — Rocket.Chat's pricing page lists a free tier (Free community; $4/user/mo Starter cloud). Limits apply; see source for current caps.

Pick Slack Pro if you're business teams needing governance. Pick Rocket.Chat if you're orgs with strict data residency or self-host needs.

// comparison

pricing checked June 2026

Compare

💬

$9/mo

Business team chat with admin controls

Cheaper start

🚀

$4/mo

Open-source team chat you can self-host or run on their cloud.

Rocket.Chat is 54% cheaper than Slack Pro on starting plans — roughly $5/mo · $57/yr per seat.

Formula: monthly = pricier − cheaper · percent = round((monthly / pricier) × 100) · annual = monthly × 12

Pick Rocket.Chat if you're orgs with strict data residency or self-host needs. Pick Slack Pro if you're business teams needing governance.

Did this swap work for you?

Other ways to swap Slack Pro or Rocket.Chat.

Prices change often — verify on the vendor's site before switching.