Best Team Chat Apps for Business in 2026: Slack vs Microsoft Teams vs Discord

Slack and Microsoft Teams are the default choices for workplace chat, but Discord has quietly become a real third option for startups, open-source projects, and creator-led businesses that want a faster, more casual tool than either. Their pricing models aren’t directly comparable — Slack and Teams sell seat-based business tiers with admin and compliance controls, while Discord sells individual cosmetic/perk subscriptions on top of a server model that was built for communities, not org charts. Here’s what that actually means for a team choosing between them in 2026.

At a Glance

Tool	Entry Paid Price	Free Tier	Admin/Compliance Controls	Best For
Slack	$7.25/user/mo billed annually (Pro)	90-day message history, up to 10 apps	SSO/SCIM from Business+ ($15/user/mo)	Businesses standardizing on integrations and searchable history
Microsoft Teams	$4.00/user/mo (Teams Essentials)	No standalone free business tier at this pricing level	Built into Microsoft 365 admin center across all paid tiers	Organizations already running Microsoft 365
Discord	$2.99/mo per person (Nitro Basic) — not a team/business plan	Full-featured free servers with no user cap	None native — relies on third-party bots and manual roles	Communities, open-source projects, and informal or dev-first teams

Short Verdict

Slack remains the most polished pure-chat experience with the deepest third-party app ecosystem, but SSO and SCIM don’t arrive until Business+ at $15/user/month. Microsoft Teams is the default if you’re already paying for Microsoft 365 — Teams Essentials at $4/user/month undercuts Slack’s Pro tier, and most organizations get Teams bundled into a Business Basic or Standard license they already hold. Discord is the outlier: its free tier is genuinely more generous than Slack’s or Teams’, with unlimited message history and no user cap, but it has no enterprise admin console, no SSO, and no compliance certifications built for regulated businesses — Nitro is a personal cosmetic subscription, not a business license.

What Each Tool Actually Is

Slack charges per user per month with four tiers. Free caps message history at 90 days and limits apps/integrations to 10. Pro removes those caps and adds group huddles and external Slack Connect messaging. Business+ adds SAML SSO, SCIM provisioning, data residency controls, full message export, and AI search. Enterprise+ adds unlimited Slackbot usage, multiple SAML configurations, audit logs, legal holds, native DLP, and information barriers — priced at $45/user/month with annual billing, per Slack’s published pricing page.

Microsoft Teams is sold both as a standalone product and bundled into Microsoft 365. Teams Essentials ($4/user/mo) covers meetings up to 30 hours and 300 participants with 10GB storage, but no Office apps. Microsoft 365 Business Basic ($7/user/mo) bundles Teams with web/mobile Office apps, business email, and 1TB of storage. Business Standard with Copilot ($23.50/user/mo) adds desktop Office apps and built-in Copilot AI. Teams Phone (cloud calling) is a separate add-on starting at $10/user/month, and Teams Premium (advanced meeting features) adds another $10/user/month.

Discord doesn’t sell seats or business licenses at all — every server is free to create and join, with no cap on members, channels, or message history. What it sells is Nitro, an individual subscription that unlocks personal perks: custom emoji everywhere, larger file uploads (50MB on Basic, 1GB on full Nitro), HD video streaming, and custom profile themes. None of this touches team administration — permissions, moderation, and integrations on a Discord server are handled through manually configured roles and third-party bots rather than a built-in enterprise admin console.

Pricing Comparison

Plan Tier	Slack	Microsoft Teams	Discord
Free	$0 — 90-day history, 10 apps, 1:1 huddles only	No equivalent standalone free business tier	$0 — unlimited members, channels, and history on any server
Entry	Pro: $7.25/user/mo (annual) — unlimited history/apps, group huddles	Teams Essentials: $4.00/user/mo — meetings up to 300 participants, 10GB storage	Nitro Basic: $2.99/mo per person — custom emoji, 50MB uploads (personal perk, not a seat license)
Mid	Business+: $15/user/mo (annual) — SSO/SCIM, data residency, AI search	Business Basic: $7.00/user/mo — Office web/mobile apps, 1TB storage, Teams included	Nitro: $9.99/mo per person — 1GB uploads, HD streaming, custom themes (still personal, not a team license)
Top	Enterprise+: $45/user/mo (annual) — unlimited Slackbot, audit logs, legal holds, DLP	Business Standard with Copilot: $23.50/user/mo — desktop Office apps + built-in Copilot AI	No business/enterprise tier exists

Slack’s monthly (non-annual) billing costs more across the board — $8.75/user for Pro and $18/user for Business+ — and the company runs a limited-time 50% discount for the first three months on monthly plans. Microsoft’s Teams Phone cloud-calling add-ons range from $10 to $34 per user per month depending on calling-plan minutes, which neither Slack nor Discord offers as a native feature at all.

Trade-offs

• Slack pros: the largest third-party app marketplace of the three, well-regarded search and thread UX, flexible Slack Connect for cross-company channels.
• Slack cons: SSO/SCIM gated behind Business+, and per-user pricing climbs quickly once you need Enterprise+ compliance features.
• Microsoft Teams pros: deep Office/SharePoint/OneDrive integration, often already paid for inside an existing Microsoft 365 contract, strong video/meeting feature set.
• Microsoft Teams cons: calling features require separate add-on licenses that get expensive fast, and the plan matrix (Essentials vs Business Basic vs Business Standard) is confusing to compare without a Microsoft rep.
• Discord pros: genuinely unlimited free tier, fast and informal real-time chat and voice, strong for distributed open-source or dev-first teams already comfortable with it.
• Discord cons: no SSO, no admin console or audit logs, no compliance certifications aimed at regulated industries, and Nitro doesn’t actually buy any team-management capability.

Who Each Tool Is a Good Fit For

Choose Slack if integrations and search matter more than cost, and you’re willing to pay for Business+ once you need SSO or compliance controls.

Choose Microsoft Teams if your organization already runs on Microsoft 365 — the marginal cost of adding Teams-based chat is usually lower than adding Slack on top of an existing Microsoft contract.

Choose Discord if you’re a community, open-source project, or small informal team that doesn’t need enterprise admin controls and wants a free, fast, voice-and-text-friendly space — not as a replacement for Slack or Teams in a regulated or compliance-sensitive business.

Bottom Line

Slack versus Teams is a real head-to-head for most businesses, and the honest tiebreaker is usually what you already pay for: if Microsoft 365 is in place, Teams is close to free; if it isn’t, Slack’s Pro tier is the easier sell at $7.25/user/month. Discord isn’t really competing in that decision — it’s the right tool when the “team” in question is a community, a side project, or a small technical group that would find Slack’s or Teams’ enterprise machinery like overkill, not when you need the admin, audit, and compliance tooling those two were actually built to sell.

FAQ

Does Discord have a business or team plan?
No. Discord’s only paid consumer offering is Nitro, an individual subscription for cosmetic and utility perks (custom emoji, larger uploads, HD streaming). It has no seat-based business tier, SSO, or admin console comparable to Slack or Microsoft Teams.

Is Microsoft Teams free if I already have Microsoft 365?
Teams is included in most Microsoft 365 Business plans, including Business Basic ($7/user/mo) and Business Standard with Copilot ($23.50/user/mo), per Microsoft’s official comparison page, so there’s no separate Teams license fee on top of those bundles.

When do I need Slack’s Business+ plan instead of Pro?
As soon as you need SAML-based SSO, SCIM user provisioning, data residency controls, or compliance exports, since Slack’s Pro tier doesn’t include any of those, per Slack’s official pricing page.

Does Slack or Teams offer phone calling?
Microsoft Teams does, through its separate Teams Phone add-ons ($10–$34/user/month depending on calling plan). Slack’s published pricing page does not list a native PSTN phone-calling product.

Sources

• Slack — Official Pricing Page
• Microsoft — Compare Microsoft Teams Options
• Discord — Official Nitro Page