PRICING & COMPARISON
One price.
No fine print.
ONMI is paid once per installation, not per person. Here is the full picture: what each plan includes, how it compares with Slack and how the numbers change with your team.
The uncomfortable comparison
You don't pay per person.
You pay to own it.
Slack is a great product. ONMI is a different decision: your space, your domain and a cost that doesn't grow with every person you invite.
| What matters |  ONMI | Slack |
|---|---|---|
| Pricing model | One-time installation feeNo per-user fees | Monthly subscription per person≈ $8.75 USD per person/month |
| First-year cost · 15 people | Base $749 · Studio $1,249One-time. Base excludes hosting; Studio includes hosting and domain for the first year (up to 100 people). | ≈ $1,575 USD per yearSlack Pro · 15 people |
| Data | Your serverYou decide where it lives | Slack infrastructure |
| Domain & brand | Your domain, logo and colors | Standard experience |
| Interface language | Spanish and EnglishEach person chooses | Depends on plan and country |
| Announcements | Native, with commentsNo integrations | Requires canvas or an integration |
| Calendar | Categories, filters and Jitsi | Not native |
| Notes | Tasks, tags and pinning | Canvas on some plans |
| Audit log | Metadata, no chat readerPrivacy by design | Exports on some plans |
| Backups | Encrypted with guided restoreSafety backup before restoring | Exports; no full workspace restore |
| Task statistics | By person and channel, with CSVCompletion rate, average days and weekly trend | Analytics on higher plans |
| Apps & PWA | macOS, Windows and AndroidPlus installable PWA and offline mode | Native apps |
| If you stop paying | Your installation keeps runningRenewals cover support and patches | You lose access to the workspace |
Do the math
Slack's cost grows.
ONMI's doesn't.
Move the team size and compare year one, year two and the three-year total. A team of 15 people is just the start.
Studio includes hosting and domain for the first year; price depends on team size (up to 100: $1,249; more than 100: $1,549).
Slack Pro at $8.75 USD per person/month, billed annually. List prices; subject to change.
Next step
The numbers are here.
Now your team.
Tell us how many people you are and what you need. We'll tell you which plan fits and get it ready on your domain.
No commitment · A direct answer, not a one-hour presentation