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Pricing data
Software IndexEvery tool we track in one sortable table: entry price, free plan, AI pricing and source. AI Pricing DatabaseHow each vendor bills its AI features: bundled, add-on, metered or quote. Stack Cost CheckerPrice every tool you pay for at list price, saved in a link that re-prices later.Black Friday Software DealsVerified deals plus the discounts you can get today, checked on each vendor’s site.
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Security & compliance
Security & compliance databaseSOC 2, ISO 27001, HIPAA BAAs, and the plan you need for SSO, SCIM and audit logs. How to read security claimsSOC 2 vs ISO 27001, the single sign-on tax, and what “Not published” means.
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Offline access databaseWhich tools work without internet, in which app, and what syncs later. Remote vs office guideIP allowlisting, device controls, data residency and office hardware, tool by tool.
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Security in every comparisonEach head-to-head now compares compliance, sign-in, offline and remote controls. Download the dataJSON and CSV, CC BY 4.0. Every value carries the vendor URL and quote.
Home › Software Index › Slack
Slack logo
Team Communication

Slack pricing

Slack pricing: From $7.25/seat/mo. Free plan: yes — 90-day message history. AI (AI search, recaps, translation): folded into Business+ tier; separate paid AI add-on discontinued Aug 2025. Rated 4.5/5 on G2 (39,795 reviews). Each figure links to the comparison it was verified in.

Last verified September 12, 2026 Official site ↗Vendor pricing ↗ Methodology Get this as JSON
Compare Slack vs Microsoft Teams →
Entry price
From $7.25/seat/moVerified in slack-vs-microsoft-teams
Free plan
Free planYes — 90-day message history
AI pricing
Bundled freeAI search, recaps, translation: Folded into Business+ tier; separate paid AI add-on discontinued Aug 2025
G2 rating
4.5 / 539,795 reviews · checked · G2
On HelpCompare
1 comparison ↓2 migration guides ↓
Bill Belcamino
Bottom line up frontby Bill Belcamino, founder of HelpCompare
Editorial assessment

Bottom line up front: What will Slack cost a team, and what does the free plan's history limit mean in practice?

Paid Slack starts from $7.25/seat/mo, and the free plan keeps only a 90-day message history, which is the limit to weigh first.

AI search, recaps and translation are folded into Business+, the same tier where SSO and SCIM appear, and the separate paid AI add-on was discontinued in Aug 2025. Guests for contractors or clients need a paid plan, though Single-Channel Guests are free, up to 5 per paid member. The history limit points at a bigger habit problem: chat is a terrible system of record. Decisions, approvals and client promises made in a thread are hard to find later on any plan, and on the free one they disappear. Make it a rule that anything decided in Slack gets written into the doc or ticket it belongs to, and the 90-day cap stops being a reason to upgrade.

My read of the verified data on this page, checked against vendor sources on September 12, 2026. Disagree or spot an error? Tell Bill

Slack pricing

Everything we have verified about Slack

Every row was recorded on a HelpCompare comparison page. The Source column links to the page it was verified on and the date it was last checked.

AttributeValueSource & date
Entry price From $7.25/seat/mo slack-vs-microsoft-teams
Free plan Yes — 90-day message history slack-vs-microsoft-teams
Verified data

Slack security, offline access & remote work

Compliance reports, sign-in controls, offline access and the setup details that matter for remote, hybrid and in-office teams. Each value links to the vendor page it came from. Slack’s own security documentation: slack.com. Scope: Commercial Slack plans (Free, Pro, Business+, Enterprise). GovSlack is a separate FedRAMP High offering.

Security & compliance

SOC 2 report
SOC 2 Type IIsource
ISO/IEC 27001
Certifiedsource
Other certifications
ISO/IEC 27017, ISO/IEC 27018, ISO/IEC 27701, ISO/IEC 42001, SOC 3, CSA STAR (registry listing), FedRAMP Moderate, TISAX, IRAP, ISMAP, C5, ENS High, Korea CSP Safety Assessment, FINRA 17a-4 configurablesource
HIPAA (BAA)
BAA availableEnterprisesource
GDPR data processing agreement
DPA offeredsource
Single sign-on (SAML/OIDC)
YesBusiness+source
SCIM user provisioning
YesBusiness+source
Two-factor authentication
YesEnforcement: Free (available on all plans)source
Admin audit log
YesEnterprisesource
Data residency choices
US, Germany, France, SE, Switzerland, Japan, India, Singapore, South Korea, Australia, UK, Canada, BrazilBusiness+source
Encryption
Encrypted at rest and in transit by default; optional customer-managed keys via Slack EKMsource
Self-hosting option
Not published

Offline access

Offline mode
Not documented
Desktop apps
Windows, macOS, Linuxsource
Mobile apps
iOS, Androidsource

Remote, hybrid & in-office

IP allowlisting
Not published
Device & session controls
YesFreeBlock desktop/mobile file downloads (desktop downloads can be limited to allowed IP ranges) and mobile message copying on all plans; session duration controls; EMM-managed mobile device requirement on Enterprise Grid/Enterprise+.source

Slack: worth knowing

  • OfficeSlack huddles need UDP/3478 (or legacy UDP/22466) and TCP/443 open on office networks. source
  • SecurityAdmins can block desktop file downloads except from specified IP ranges, e.g. office or VPN addresses. source
  • RemoteGuest accounts for contractors or clients require a paid plan; Single-Channel Guests are free, up to 5 per paid member. source
  • OfficeSlack needs a persistent WebSocket connection over port 443; proxies and firewalls must allow it. source
Slack vs Microsoft Teams: security & offlineSecurity databaseOffline databaseRemote vs office guide

Checked September 19, 2026 against each vendor’s own trust center, help docs and app pages. Hover or tap “source” to see the exact wording we relied on. “Not published” means we could not find the vendor saying it on its own site; it doesn’t mean the feature is missing. Plan names are the lowest plan the vendor says includes the feature. Security · Offline · Remote vs office · Download the data

Slack in context

How Slack connects to the rest of the software we track — head-to-head research, switching paths, and the closest alternatives in its category.

Head-to-head comparisons

Full pricing and feature breakdowns featuring Slack.

Switching away from Slack

What transfers, what you rebuild by hand, and what to budget.

Switching to Slack

Moving in from another platform.

Alternatives in Team Communication

Other tools we track in the same category, with their entry price.

Where this data comes from

HelpCompare records pricing and feature data from vendor pricing pages and documentation at the time each comparison is researched, then re-checks it on a published schedule. This entity page is generated from those records — it does not introduce any figure that has not already been verified on a comparison page.

  • Vendor pricing and documentation — slack.com, checked September 12, 2026.
  • HelpCompare research — 1 comparison page listed above, each with its own verification date.
  • G2 — aggregate rating and review count, checked . Review counts change daily; treat them as a snapshot.
  • Machine-readable copy — /data/tools.json, /data/tools.csv, and the open data hub.
Prices change often and vendors do not always announce it. Every figure here carries the date it was last checked — confirm current pricing with the vendor before you buy. If you find something out of date, the comparison page it came from is linked in the table above.
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01 · CompareWhich tool fits your team, side by side.133 comparisons 02 · Price & approveSourced, dated pricing and a one-page brief for sign-off.Decision brief 03 · SwitchWhat moves, what you rebuild, what it costs.264 guides 04 · ShareDownload and cite the data. CC BY 4.0.Open data
Bill Belcamino, founder of HelpCompare
About the author

Bill Belcamino

Founder and author, HelpCompare

Engineer by training, operator by experience, marketer by choice. Bill spent eight and a half years as an engineer at HP, was COO of Auctiva (the number one third-party selling platform on eBay, past 200,000 users) and ran Google’s $70M/year search syndication partnership at Alot.com. Then he spent 13 years building his own web properties with his own money at stake. He has bought, trialled, integrated and cancelled more SaaS tools than he can count, and started HelpCompare because the real cost of switching tools is the part nobody covers.

“I’ve sat on both sides of the table: the agency recommending the tool and the client paying for it.”

Researched and fact-checked by the HelpCompare team. No paid sponsorships, no affiliate commissions.

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