Slack

Channel-based team messenger, the de-facto standard for startup collaboration. Supports thousands of integrations and workflow automation.

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Editor

Jake's editor note
The global tech-org standard. Connector count, search, and Slack Connect are still unbeatable. In Korea/Japan, local messenger (Kakao/LINE) integration is weak — you always need an external-comms tool alongside.
Jake (황관희)
Founder, 5years+ · Operator, Crewless
Last updated: 2026-04-21

Key Features

• Channels, DMs, Huddles voice • 2,000+ third-party integrations • Workflow Builder automation • File sharing and search • Enterprise security (SSO/SCIM)

Pricing

Free (90-day history), Pro $8.75/user/mo, Business+ $15/user/mo.

FAQ

Is Free plan enough?

The 90-day message limit makes Pro recommended for longer use.

Korean/Japanese support?

Yes, UI and support are available in both languages.

On-premise option?

No, SaaS-only; Enterprise Grid offers data residency options.

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