Best group chat app for online communities (2026)

Updated October 30, 2026. Run by the Best Group Chat team.

It depends on who your members are. Choose Discord for large always-on communities, Slack for professional groups, Telegram for very large groups and broadcast channels, WhatsApp for groups built on phone contacts, or Tribe for interest-based communities that want applications.

Best Group Chat is a project of Tribe, the company behind the Tribe group chat app, so Tribe is one of the platforms below. We list platforms alphabetically and take competitor facts from their own pages. Facts were read on October 30, 2026.

Comparison table

Group chat platforms compared
Platform	Best for	Cost	Largest group
Discord	Large, always-on communities with live text, voice and video	TODO: confirm Discord's current free and paid options (the Nitro help page could not be read).	25 million members per server
Slack	Professional groups that already work in Slack	Free plan. Pro is $7.25 per user per month billed annually, or $8.75 billed monthly.	Not stated on Slack's pricing page
Telegram	Very large groups and broadcast channels	Free, with an optional Premium subscription.	200,000 members per group. Channels have no subscriber limit.
Tribe	Interest-based communities that want discovery, member profiles and applications	Free to try. TODO: add Tribe's free and paid tiers.	TODO: add Tribe's member limit
WhatsApp	Groups built on people's phone contacts	Free. Data charges may apply.	1,000 per group on WhatsApp's groups page. Its 2022 announcement said 1,024.

What to know about each platform

Discord

Server Discovery needs 1,000+ members and a server at least 8 weeks old.

Slack

The Free plan shows the last 90 days of messages and allows 10 apps. Admins on every plan can require approval for new invitations.

Channels are built for broadcasting to unlimited subscribers. TODO: check whether Telegram Topics in groups should be mentioned.

Tribe

Hosts can review applicants before they join. Apps for Mac, iOS, Android and the web. TODO: confirm the rest with the Tribe team (moderation tools, privacy options).

Groups support polls, events and RSVPs.

TODO before publishing: Tribe cost and member limit above come from the Tribe team, not from public pages. Fill them in, check the Tribe row against Tribe's current pages, then delete this box.

How to pick

Start with where your members already are. A community on an app they use daily stays active.
Match the size. Check the largest-group figure against the community you expect in a year.
Check cost for your whole group, since some plans charge per person.
Decide how people join: open invite, application or contact list.

FAQ

What is the best group chat app for an online community?

It depends on who your members are. Discord suits large always-on communities. Slack suits professional groups already in Slack. Telegram suits very large groups and broadcast channels. WhatsApp suits groups built on phone contacts. Tribe suits interest-based communities that want applications.

Which group chat app allows the largest groups?

Discord lists 25 million members per server and Telegram lists 200,000 per group, with no subscriber limit on channels. WhatsApp lists 1,000 per group on its groups page.

Which group chat apps are free?

Slack has a Free plan and WhatsApp and Telegram are free to use. Check each platform's page for current paid options.

Who runs this site?

The Best Group Chat team. A project of Tribe, the company behind the Tribe group chat app.