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Sahnga vs Slack
Not a task tool — the chat bill you pay on top of your project tool.
Slack prices checked July 2026, quoted at their best published rate — annual where they offer one. Sahnga: $5 a person, flat, monthly.
Sahnga vs Slack at a glance
| Sahnga | Slack | |
|---|---|---|
| Advertised entry price | Free for one maker, then $5 a person | Pro — $7.25/user/mo |
| Price with everything included | $5 a person — the same number, because there is no tier above it | Business+ — $15/user/mo |
| Monthly bill for 10 people | $45 | $150 |
| SSO & SAML | On every plan when it lands — never an upcharge. We don't tax security and we never will. | SSO lands on Business+ |
| Guests & clients | Unlimited and free — only people who create or edit ever count | Single-channel guests are free; multi-channel guests bill as full members |
| Automation & usage limits | No usage meters, anywhere. Nothing counts down. | Workflow Builder is included on paid plans; the meaningful limit on Free is message history |
| Free plan | One maker, unlimited viewers and guests, the whole feature set | Free keeps the most recent 90 days of messages and files |
| How the bill scales | $5 × your makers, flat — no tiers, no minimums, no upsells, and nothing else in the formula. | Per seat too — through the tiers and add-ons above |
Competitor prices checked July 2026 and quoted at each vendor's best published rate — annual where a vendor offers one, and their cheapest number, not ours. Every figure links to the page it came from. Spot something out of date? Tell us and we'll fix it. The full 13-tool parity table lives on the pricing page.
What Slack gets right
Slack is very good at what it does, and its fair-billing policy — you're only charged for people who are actually active — is genuinely one of the most honest billing practices in software. We're not going to pretend otherwise.
The honest take
Slack isn't competing with a project tool; it's competing with your budget. Most teams pay for Slack and a project tool, which means two bills, two search boxes, and the permanent gap between the decision made in a thread and the task that should have captured it. Multi-channel guests bill as paid members, so bringing a client into more than one channel costs the same as an employee. And Free keeps only the most recent 90 days of messages, which quietly makes the paid plan mandatory once your team has any history worth keeping.
The bill, in plain words
Slack pricing in 2026, decoded
Free (90 days of history) → Pro $7.25 annual, $8.75 monthly → Business+ $15, then Enterprise tiers.
Free keeps only the most recent 90 days of messages and files.
Pro is $7.25 a user on annual billing, $8.75 monthly.
Business+ is $15 a user, and it's where SSO lands.
Slack's fair-billing policy charges you only for active members — a genuinely honest practice worth naming.
Multi-channel guests bill as paid members, so a client in two channels costs a full seat.
Competitor prices checked July 2026 and quoted at each vendor's best published rate — annual where a vendor offers one, and their cheapest number, not ours. Every figure links to the page it came from. Spot something out of date? Tell us and we'll fix it.
Run the numbers
What Slack costs as your team grows
5 people
$20/mo
$5 a person, first maker free
$75/mo on Slack Business+. That’s 3.8× our bill.
15 people
$70/mo
$5 a person, first maker free
$225/mo on Slack Business+. That’s 3.2× our bill.
65 people
$320/mo
$5 a person, first maker free
$975/mo on Slack Business+. That’s 3× our bill.
Sahnga's arithmetic never changes: $5 a month for every maker after the first — the same rate at 10 people, at 200, at 1,000, with no tier to climb and no Enterprise number to negotiate. Slack bills per seat the whole way up too — the difference is what the seat includes, and who never counts. Viewers, commenters, guests and clients are free on our side at any size.
The switch
Why teams switch from Slack to Sahnga
Team chat lives with the work, in the same seat — one bill instead of a chat bill plus a project-tool bill.
$5 a person total, with full history that never expires after 90 days.
Everyone who edits and chats is $5 a person. Everyone who only needs to see the work is free and unlimited — viewers read every project, guests and clients comment on theirs, and no multi-channel guest quietly converts into a full seat.
Moving your work off Slack
You don't have to leave Slack to save money — most teams that adopt Sahnga drop the project tool first, because chat about the work now sits beside the work. Slack exports channel history from its own workspace settings if you do want to move, and Sahnga's chat keeps full history on every plan rather than the most recent 90 days.
Receipts: docs/research/competitive-landscape.md — Slack profile (fair billing, guest tiers)
Questions
Sahnga vs Slack FAQ
Is there a flat-priced Slack alternative?+
Sahnga is flat where it counts — the seat, not the total: $5 for each person who creates or edits, one maker free, and that rate never climbs a tier at 10 people or 1,000. The total isn't one fixed number; it's your maker count times $5 and nothing else — no minimums, no rungs, no add-ons, and viewers, commenters, guests and clients never count. There are no tiers to climb: unmetered automations, timeline and dependencies, time tracking, full history, the API and one-click export are in every plan, including Free. Worth being precise: Slack isn't a project tool, so the honest comparison is one bill against two — Sahnga's seat includes chat and the work it's about.
How much does Slack cost for a team of 10?+
Ten people on Sahnga is $45 a month — $5 each with the first maker free, and unlimited viewers, guests and clients on top at no charge. Matching that feature-for-feature on Slack means Business+, which comes to about $150 a month for ten at their best published rate.
Does Sahnga import from Slack?+
You don't have to leave Slack to save money — most teams that adopt Sahnga drop the project tool first, because chat about the work now sits beside the work. Slack exports channel history from its own workspace settings if you do want to move, and Sahnga's chat keeps full history on every plan rather than the most recent 90 days.
Does Slack charge extra for SSO?+
SSO lands on Business+ at $15 a user, so it's a tier climb rather than an add-on — better than the seven tools on our list that won't publish an SSO price at all. When SAML and SSO land, they're on every plan — Free included — at no extra cost. We will never charge you for logging in securely.
Does Slack charge for guests?+
Single-channel guests are free, but multi-channel guests bill as full paid members — so a client who needs to be in two channels costs what an employee costs. On Sahnga, viewers, commenters, guests and clients are unlimited and free on the work itself: they read the projects and comment where you've invited them, and none of them ever converts into a paid seat. The honest boundary is chat — team chat rides the maker seat, so the people who chat are the people you're already paying for.
Can Sahnga replace Slack?+
For team chat about your work, yes — channels, threads and full history are included in the same seat, with no 90-day cutoff. What we don't try to be is a company-wide social layer with thousands of apps; if that's what Slack is for you, keeping it and dropping the separate project-tool bill is the sensible move.
Bring your team over in an afternoon.
$5 a person, every feature on every plan, and a full export whenever you want it. Slack stays exportable too — you lose nothing by trying.