{"slug":"slack-vs-microsoft-teams","title":"Slack vs Microsoft Teams","url":"https://www.aversusb.net/compare/slack-vs-microsoft-teams","faqCount":5,"faqs":[{"question":"Is Slack or Microsoft Teams better for small teams?","answer":"Slack is generally preferred by small tech-forward teams for its cleaner UX, better third-party integrations, and more enjoyable day-to-day experience. The free plan (90-day message history, 10 integrations) works for early-stage teams. However, if the team already pays for Microsoft 365 Business Basic ($6/user/month), Teams is included at no extra cost — making it the more economical choice for budget-conscious small teams. The key question is whether the team prefers UX quality (Slack) or zero marginal cost within an existing Microsoft subscription (Teams)."},{"question":"How many users does Microsoft Teams have vs Slack?","answer":"Microsoft Teams has approximately 320 million monthly active users as of 2026, compared to Slack's approximately 20 million daily active users. The gap is largely structural — Teams is bundled into every Microsoft 365 subscription, giving it automatic deployment across millions of organizations without a separate procurement decision. Slack reached ~12M DAUs before the COVID-19 pandemic and has grown to ~20M, but Teams grew from 32M DAUs (March 2020) to 320M MAUs through Microsoft 365 bundling and the remote-work adoption wave."},{"question":"Can Slack replace email?","answer":"Slack can reduce internal email significantly — many Slack-first organizations report 70-80% reductions in internal email volume. Channels organize conversations by project or topic, threads keep discussions focused, and Slack AI summarizes channels you missed. However, Slack does not replace email for external communication (client emails, vendor correspondence), formal documentation (compliance records, legal notices), or asynchronous communication with non-Slack users. Most organizations use Slack for internal real-time messaging and retain email for external and formal communication."},{"question":"Does Microsoft Teams work with non-Microsoft apps?","answer":"Yes — Teams has an app directory with 700+ integrations including GitHub, Jira, Salesforce, Zendesk, Asana, Trello, and many others. However, Slack's integration library (2,600+ apps) is significantly larger, and many developer tools (PagerDuty, DataDog, CircleCI) integrate more deeply with Slack than Teams. For organizations where developer tooling integrations are critical, Slack's ecosystem advantage is real and meaningful. For organizations where Microsoft 365 integration is the primary requirement, Teams' native integrations are unmatched."},{"question":"Is Microsoft Teams free?","answer":"Microsoft Teams has a free standalone plan for personal use and small teams. For organizations, Teams Essentials is $4/user/month (standalone, without Office apps). The key value, however, is that Teams is included in all Microsoft 365 Business and Enterprise subscriptions — Business Basic starts at $6/user/month and includes Teams plus cloud email, OneDrive, and web Office apps. For organizations already paying Microsoft 365, Teams has zero incremental cost, which is its strongest commercial argument against Slack."}],"faqPageSchema":{"@context":"https://schema.org","@type":"FAQPage","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#faq","url":"https://www.aversusb.net/compare/slack-vs-microsoft-teams","inLanguage":"en-US","name":"Slack vs Microsoft Teams — FAQ","description":"Frequently asked questions about Slack vs Microsoft Teams","dateModified":"2026-10-06T09:00:06.628Z","author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"},"publisher":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"},"isPartOf":{"@type":"Article","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#article"},"license":"https://creativecommons.org/licenses/by/4.0/","speakable":{"@type":"SpeakableSpecification","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#faq-speakable","cssSelector":[".faq-answer"]},"mainEntity":[{"@type":"Question","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#q1","name":"Is Slack or Microsoft Teams better for small teams?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#a1","text":"Slack is generally preferred by small tech-forward teams for its cleaner UX, better third-party integrations, and more enjoyable day-to-day experience. The free plan (90-day message history, 10 integrations) works for early-stage teams. However, if the team already pays for Microsoft 365 Business Basic ($6/user/month), Teams is included at no extra cost — making it the more economical choice for budget-conscious small teams. The key question is whether the team prefers UX quality (Slack) or zero marginal cost within an existing Microsoft subscription (Teams).","inLanguage":"en-US","url":"https://www.aversusb.net/compare/slack-vs-microsoft-teams","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#q2","name":"How many users does Microsoft Teams have vs Slack?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#a2","text":"Microsoft Teams has approximately 320 million monthly active users as of 2026, compared to Slack's approximately 20 million daily active users. The gap is largely structural — Teams is bundled into every Microsoft 365 subscription, giving it automatic deployment across millions of organizations without a separate procurement decision. Slack reached ~12M DAUs before the COVID-19 pandemic and has grown to ~20M, but Teams grew from 32M DAUs (March 2020) to 320M MAUs through Microsoft 365 bundling and the remote-work adoption wave.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/slack-vs-microsoft-teams","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#q3","name":"Can Slack replace email?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#a3","text":"Slack can reduce internal email significantly — many Slack-first organizations report 70-80% reductions in internal email volume. Channels organize conversations by project or topic, threads keep discussions focused, and Slack AI summarizes channels you missed. However, Slack does not replace email for external communication (client emails, vendor correspondence), formal documentation (compliance records, legal notices), or asynchronous communication with non-Slack users. Most organizations use Slack for internal real-time messaging and retain email for external and formal communication.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/slack-vs-microsoft-teams","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#q4","name":"Does Microsoft Teams work with non-Microsoft apps?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#a4","text":"Yes — Teams has an app directory with 700+ integrations including GitHub, Jira, Salesforce, Zendesk, Asana, Trello, and many others. However, Slack's integration library (2,600+ apps) is significantly larger, and many developer tools (PagerDuty, DataDog, CircleCI) integrate more deeply with Slack than Teams. For organizations where developer tooling integrations are critical, Slack's ecosystem advantage is real and meaningful. For organizations where Microsoft 365 integration is the primary requirement, Teams' native integrations are unmatched.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/slack-vs-microsoft-teams","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#q5","name":"Is Microsoft Teams free?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/slack-vs-microsoft-teams#a5","text":"Microsoft Teams has a free standalone plan for personal use and small teams. For organizations, Teams Essentials is $4/user/month (standalone, without Office apps). The key value, however, is that Teams is included in all Microsoft 365 Business and Enterprise subscriptions — Business Basic starts at $6/user/month and includes Teams plus cloud email, OneDrive, and web Office apps. For organizations already paying Microsoft 365, Teams has zero incremental cost, which is its strongest commercial argument against Slack.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/slack-vs-microsoft-teams","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}}]}}