Compare

+ Only one here with Zapier integration

+ Free plan available

+ Deloitte alliance partner

+ Vendor is publicly listed — audited financial disclosure

+ Free plan available

+ Turkish interface

+ Vendor is publicly listed — audited financial disclosure

+ Lowest starting price here ($4 / user/month)

+ Broadest feature coverage (21)

+ Only one here with Offline mode

+ Turkish interface

+ Vendor is publicly listed — audited financial disclosure

+ Only one here with Self-hosted, Open source

+ Free plan available

+ Open source

+ Can run on-premise

+ Turkish interface

− Lacks Turkish interface, File versioning — offered by others here

− Cloud only

− No Turkish interface

− No public adoption figures

− Smallest vendor (76,000 employees) — check support capacity

− Cloud only

− Lacks Webhooks, Workflow automation — offered by others here

− No free plan

− Cloud only

− No public adoption figures

− Lacks SOC 2, ISO 27001, HIPAA +3 more — offered by others here

− No public adoption figures

− Highest starting price here ($10 / user/month)

− Narrowest feature scope (17)

− Least established — vendor founded 2015

+ Intuitive channel-based messaging

+ Huge ecosystem of integrations and bots

+ Strong search and workflow automation

+ Deep integration with Microsoft 365 apps

+ Chat, meetings and file collaboration in one place

+ Often included in existing Microsoft licenses

+ Real-time collaboration in Docs, Sheets and Slides

+ Reliable Gmail and simple administration

+ Works fully in the browser on any device

+ Self-hosting gives full control over data

+ Open source and extensible

+ Suited to regulated and security-sensitive teams

− Free plan has limited message history

− Can become noisy and distracting

− Per-user cost adds up for large teams

− Interface can feel cluttered

− Can be resource-heavy on desktop

− Less appealing outside the Microsoft ecosystem

− Advanced spreadsheet features lag behind Excel

− Offline use is limited

− Storage and security features vary by plan

− Self-hosting requires operational effort

− Smaller integration ecosystem than Slack

− Some enterprise features are paid only