18.7
Zulip is team chat software that organizes conversations in channels and supports guest access.
Free planOpen sourceAndroidiOSWeb
Best Business Instant Messaging - Midmarket Software in 2026
28.4
Lark brings workplace communication and collaboration into one platform, with chat, calendars, document creation, and cloud storage.
Free planAndroidiOSWeb
38.2
Microsoft Teams is a communications and collaboration app for chat, channels, calls, meetings, and screen sharing.
Free planAndroidiOSWeb
- 4
Rocket.Chat
Rocket.Chat is a messaging platform for teams, with channels, guest access and unlimited message history.
Free planOpen sourceAndroidiOSWebAPI8.2Free plan - 5
Slack
Slack is a team collaboration platform built around channels, messages, and connected apps.
Free planAndroidiOSWebLinux8.2From $8.75 a month - 6
Chanty
Chanty is a team chat and collaboration tool with channels, guest access and unlimited message history.
Free planAndroidiOSWebAPI7.9From $36 a year - 7
Pumble
Pumble is a team communication and collaboration app for businesses, available on the web, Windows, macOS, Linux, iOS, and Android.
Free planAndroidiOSWebAPI7.9From $2.49 a month - 8
Wire
Wire provides organizations with end-to-end encrypted messaging, calls, conferencing, and file sharing.
Free planAndroidiOSWebLinux7.9From €7.45 a month - 9
Ryver
Ryver is a team collaboration app combining group messaging, task management, and workflow automation.
Free planAndroidiOSWebExtension7.8From $4 a month - 10
Zoho Cliq
Zoho Cliq is team communication software for businesses, with channels, guest access, meetings, and workflow tools.
Free planAndroidiOSWebLinux7.6Free plan - 11
Nextcloud Talk
Nextcloud Talk combines meetings, chat, and webinars in a communication platform that can be self-hosted, run on premises, or hosted by a trusted local provider.
AndroidiOSWebAPI7.5From €71.29 a year - 12
Google Chat
Google Chat is a messaging and collaboration service included with Google Workspace at no additional cost.
AndroidiOSWebLinux7.4From $7 a month - 13
Teamwire
Teamwire is a business messaging and collaboration platform for companies and public authorities, including teams coordinating routine work or critical operations.
AndroidiOSWebAPI7.3From €3.45 a month - 14
Twist
Twist is a team messaging service organized around channels, with guest access and integrations for work tools.
Free planAndroidiOSWebLinux7.3From $6 a month - 15
Workvivo
Workvivo HQ brings employee communication, knowledge, engagement, and platform controls into an employee headquarters.
AndroidiOSWebAPI7.1 - 16
Brosix
Brosix is a paid team communication service available on Windows, macOS, Linux, iOS, Android, and the web.
AndroidiOSWebLinux6.7From $8 a month - 17
Flock
Flock is a team collaboration service organized around channels, guest access, and messaging.
AndroidiOSWebExtension6.7 - 18
Symphony
Symphony provides messaging, voice, directory and analytics platforms for regulated financial markets.
AndroidiOSWebAPI6.7 - 19
eXpress
eXpress is an enterprise communications and mobility platform for workplace messaging, meetings, and access to business processes.
AndroidiOSWebExtension6.5 - 20
Element
AndroidiOSWebLinux6.3 - 21
HansaChat
AndroidiOSWebLinux5.3 - 22
Prose
AndroidiOSWebmacOS5.3