How much does Slack cost in 2026?

Pro: $7.25 per seat a month on annual billing ($8.75 billed monthly); Business+: $15 per seat a month on annual billing ($18 billed monthly). 90 days of message history, up to 10 apps and 1:1 huddles only. Checked October 26, 2026.

What is a cheaper alternative to Slack?

Google Chat (Included in Google Workspace (from $7/user/mo)), Microsoft Teams (Included in Microsoft 365 (from $7/user/mo); Teams Essentials $4/user/mo), Zulip (Free to self-host; Cloud Standard $6.67/user/mo billed yearly). Topic-based threads keep busy channels readable; the Cloud Free plan searches only the last 10,000 messages.

Team chat and channels

Should you build your own Slack?

Q: Should you build your own Slack?

Buy it. Five people on Slack Pro pay about $1,305 over 3 years. If your team already rents Google Workspace or Microsoft 365, Google Chat or Microsoft Teams costs nothing extra, though you give up Slack’s app directory and polish and must move your channels and habits. Building your own would cost about $6,300 over 3 years and still needs push notifications that work.

Buy it, unless you already pay for Google Workspace or Microsoft 365. Then Google Chat or Teams is included.

BUY

Short answer

Five people on Slack Pro pay about $1,305 over 3 years. If your team already rents Google Workspace or Microsoft 365, Google Chat or Microsoft Teams costs nothing extra, though you give up Slack’s app directory and polish and must move your channels and habits. Building your own would cost about $6,300 over 3 years and still needs push notifications that work.

Buy for 3 years: $1,305
Build and run for 3 years: $6,265
Verdict: BUY

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Cheaper options

Already includedGoogle ChatIncluded in Google Workspace (from $7/user/mo)Spaces, threads and calls come with the Workspace you already pay for; it has far fewer app integrations than Slack.Already includedMicrosoft TeamsIncluded in Microsoft 365 (from $7/user/mo); Teams Essentials $4/user/moChat, channels and meetings come in the suite you may already rent; you give up Slack’s channel-first layout and its app directory.Open sourceZulipFree to self-host; Cloud Standard $6.67/user/mo billed yearlyTopic-based threads keep busy channels readable; the Cloud Free plan searches only the last 10,000 messages.

Slack pricing in 2026

Plan	Billed yearly	Billed monthly
Pro Typical	$7.25/seat/mo	$8.75/seat/mo
Business+	$15/seat/mo	$18/seat/mo

Free plan: 90 days of message history, up to 10 apps and 1:1 huddles only

Paying too much? Slack Free is enough if you can live without messages older than 90 days and with 10 apps.

Per user, billed annually. Slack’s page showed euros and rupees when we checked, so these USD figures come from two 2026 guides that agree. Monthly billing costs about 20% more. Checked October 26, 2026 from 2026 reviews.

Run your own numbers

Defaults are a typical small team at $30/hour. Change anything.

If you buy Slack

Plan

Seats

If you build it

Your time, $ per hour

Hours to build

Upkeep, hours per month

Hosting and services, $ per month

Buy

$1,305

Build

$6,265

Buying is about $4,960 cheaper over 3 years.

3-year totals. Building includes your time, upkeep, running costs and one month of an AI app builder ($25). Change any number to match your situation.

What you’d build

Channels, direct messages and threads
File and image uploads
Search across messages
Login with Google and invite links
Web push notifications for mentions

A Supabase Pro project covers realtime messages, file uploads and logins for about $25 a month.

What you’d give up

Slack’s app directory and one-click integrations
Reliable mobile push notifications
Huddles and screen sharing
Shared channels with other companies

Risks the price doesn’t show

Push notificationsHigh

Notifications that arrive on time on phones and browsers are hard, and missed messages kill trust in the tool.

Realtime deliveryMedium

Dropped connections and out-of-order messages look like lost conversations.

Search and retentionMedium

Search gets slow and storage gets costly as the history grows.

When the verdict flips

Switch to Google Chat or Teams if you already pay for their suite and don’t lean on Slack’s integrations or shared client channels. Switch to BUILD only if chat is part of your own product.

Sources

Slack pricing · Slack pricing guide (G2, March 2026) · Slack plans and prices (Costbench, verified September 2026)

Build hours are our estimates for one person using an AI app builder. How we score. Spotted a wrong price? Tell us on X @BuildictHQ.

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Switch to Cap or ScreenPal. Both cost about half of Loom Business for the same screen recordings and share links.

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SWITCH

Switch to Google Meet or Microsoft Teams. Both come with the suite most small teams already pay for.

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