Slack Pro, 12 seats → Zulip, self-hosted
Switch. At $50 an hour, Zulip saves you $874 over 3 years.
Worth doing only if your hour is worth less than
$73.13/hrBelow that rate, moving to Zulip pays for itself inside 3 years. Above it, your time is worth more than the saving, and you should stay on Slack Pro.
Every figure on this page updates as you move these. Most comparisons of this kind quietly assume your time is free and your team never changes size.
What you pay now
| Slack Pro $7.25/month × 12 seats, billed annual | $87.00 |
| Every month | $87.00 |
What the escape costs
| Vultr vc2-1c-2gb 1 vCPU · 2 GB RAM · 55 GB disk · 2 TB transfer · $300 of credit for your first 30 days via our referral link | $10.00 |
| Backblaze B2 backup 30 GB at $0.00695/GB/month | $0.21 |
| Your time 0.8 h/month keeping it patched and backed up | $40.00 |
| Every month | $50.21 |
| Migration, once 9 hours of your time, our estimate | $450.00 |
The same box elsewhere, if you already have an account. The arithmetic above uses the cheapest.
- Vultr $10.00 vc2-1c-2gb · used above · $300 of credit for your first 30 days
- Linode $12.00 Linode 2GB
- DigitalOcean $12.00 1 vCPU · 2 GB
The difference
| Saved each month | $36.79 |
| After one year | −$9 |
| After 3 years | $874 |
What you give up, and what you get
You lose
- Slack's familiar single-stream interface — Zulip's topic threading divides people
- The 2,600-app integration directory
- Huddles; Zulip has voice/video via Jitsi integration but it is not the same
You gain
- Topics make a busy channel readable, which is the one thing Slack has never solved
- Apache-2.0 with no edition matrix — every feature is in the free self-hosted build
- Message history and search that never hit a 90-day wall
Read this before you decide
- Zulip is opinionated: every message goes in a topic. Teams that fight itbounce off; teams that adopt it rarely go back. Do a two-week pilot before moving a whole workspace.
- Import from Slack is first-party (they ship a tooling path for it), which is unusual — the 9-hour estimate assumes it works on your export.
Is the project alive?
zulip/zulip has 26,069 stars, was last pushed 1 day ago, and last cut a release (12.3) 28 days ago. Licence: Apache-2.0. We rate it active. We do not publish comparisons against software that has gone dormant, however good the arithmetic looks.
Every number above comes from one of these, on the date shown. The Slack figure is the site's own wording: “$7.25 USD per user / month, when paying annually”.
| Slack pricing page | 11 Oct 2026 |
| Vultr plan catalogue affiliate link | 19 Oct 2026 |
| Backblaze B2 pricing | 3 Sept 2026 |
| zulip/zulip activity | 19 Oct 2026 |
Hosting requirements (1 vCPU, 2 GB RAM, 40 GB disk), migration hours and maintenance hours are our estimates, not measurements. They are the numbers most worth arguing with, so we put them where you can see them. The cheapest plan meeting those requirements is selected automatically from Vultr, Vultr and Linode's live catalogues.