Alternatives to Flock
A team messaging app with channels, voice and video calls, screen sharing and file sharing. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Flock
A team messaging app with channels, voice and video calls, screen sharing and file sharing.
Replacements
Listings that take over the same core job as Flock.
Slack
A team chat platform organized into channels, with huddles, file sharing, app integrations and AI features.
Slack provides hosted channel-based chat with huddles, a large range of integrations and workflow automation, available on desktop, mobile and web, with many features on paid plans.
Microsoft Teams (free)
The free edition of Microsoft Teams for chat, file sharing and video meetings.
Microsoft Teams (free) combines chat, file sharing and meetings of up to 100 participants in desktop, mobile and browser apps, but requires a Microsoft account.
Google Chat
Google's team messaging app with spaces, direct messages and threaded conversations.
Google Chat offers spaces and threaded conversations integrated with Gmail, Drive and Docs, but requires a Google account and has no self-hosting option.
Pumble
A team messaging app with channels, threads, direct messages and voice and video calls.
Pumble is a hosted team chat with channels, threads, calls and recording, unlimited users and history on the free offering, and native desktop and mobile apps.
Chanty
A hosted team chat workspace for organizing internal and external communication, with a free plan.
Chanty is a hosted team chat with a free plan, free guest access for external contacts and stated HIPAA, GDPR and SOC 2 compliance.
Mattermost
A self-hosted team chat platform with a desktop client, aimed at organisations that want Slack without the cloud.
Mattermost is open source and self-hosted, so message data stays on your own servers instead of a vendor's, but you must run and maintain the server.
Zulip
Team chat organised by topic inside each channel, so conversations stay readable when you come back hours later.
Zulip is open source with topic-based threads inside channels, and you can self-host it or use the hosted version, including free plans for open-source communities.
Rocket.Chat Desktop
Connect to Rocket.Chat workspaces from a desktop client.
Rocket.Chat Desktop is an open-source client for Rocket.Chat workspaces on Windows, macOS and Linux, with workspace access and server licensing arranged separately.
Also worth comparing
These listings name Flock as their own alternative, so the relationship runs both ways.
Campfire
A self-hosted group chat system from 37signals with rooms, direct messages and @mentions.
Flock is a proprietary hosted team chat with channels, built-in voice and video calls and screen sharing, so your data lives on the vendor's servers instead of yours.
Twist
An asynchronous team messaging app that organizes conversations into threads inside channels.
Flock provides channel-based team chat with built-in voice and video calls and screen sharing, as a proprietary hosted service for organisations.
Similar software
Related functionality, not a direct replacement.
Webex
Cisco's collaboration suite for video meetings, calling, team messaging, webinars and whiteboarding.
Zoom
A video meeting platform with desktop, mobile and web apps and a free tier.
Huly
An open-source team platform combining project tracking, chat, documents, planning and video meetings.
Zoho Workplace
An online suite from Zoho combining mail, team chat, meetings, file storage and office editors.
