Microsoft 365 shops where Teams Chat is already paid for in the bundle, regulated buyers needing strict self-hosted or on-prem data sovereignty (no on-prem option), buyers with hard procurement caps on per-seat fees, or organizations actively trying to escape always-on chat culture (Twist or Zulip threaded are better).
SaaS and tech companies, engineering-heavy organizations, and any team that needs the deepest third-party app and integration surface in the category. Particularly strong for organizations that have built workflows around Slack Connect, custom Slack apps, or developer-tool integrations (PagerDuty, Sentry, Linear, GitHub, Jira).
Why we say this
Editorial pulled these weaknesses from Slack’s product card in our Top 10 Team Chat Software for 2026:
- ! Post-Salesforce velocity has visibly slowed since the July 2021 acquisition
- ! Renewal pricing has crept up with buyer reports of double-digit increases
- ! Enterprise Grid is expensive at scale (SSO and audit log gated to top tier)
- ! Message-retention limits on Free and Pro force buyers up the price ladder
- ! Salesforce cross-sell pressure (Sales Cloud, Service Cloud) at renewal
- ! Slack AI add-on pricing is opaque and consistently overruns initial quotes
- ! Lost the bundle war to Microsoft Teams Chat at the Microsoft 365 stack
If Slack is wrong for you, consider these instead
Same Team Chat Software category, different best-fit buyer.
Best for
LATAM, EU public sector, and sovereignty-minded buyers needing fully self-hosted open-source team chat. Particularly defensible for Brazilian and Portuguese-speaking organizations that want a regional OSS-first option, EU public-sector buyers seeking to escape US-controlled SaaS, and any organization that wants omnichannel team plus customer messaging in one codebase.
See full profile →Best for
Any organization already paying for Microsoft 365 E3, E5, or Business (the vast majority of enterprise buyers globally). Particularly strong for regulated and government buyers requiring FedRAMP High, GCC, or GCC High and for organizations deeply integrated with Outlook, SharePoint, and the rest of the Microsoft stack.
See full profile →Best for
Remote-first, writing-heavy, and globally distributed teams that explicitly want to escape always-on chat culture. Particularly strong for organizations with strong async-by-default philosophy (Doist itself, Automattic-style distributed teams, writing-heavy product organizations).
See full profile →Related editorial
Last updated 2026-05-10. Editorial verdict based on the published Top 10 Team Chat Software for 2026 ranking. Disagree? Tell us.