Eleven for Business is encrypted group chat for small businesses, with spaces, groups, direct messages, file sharing, reactions, replies, threads, GIF search and link previews. Spaces include scheduled reminders, morning summaries and a helper that can answer questions and build small apps. The service works in a browser and has native Mac and iPhone apps; its business page also says it runs on warehouse Android devices. Teams can invite clients using a link and remove them when work ends, without provisioning guest accounts. Messages and attachments are encrypted on users’ devices; the server stores and relays ciphertext it cannot read. Businesses can self-host the service at no charge using a server program, with the same apps and features. The Free plan costs 0.00 EUR per free and includes up to three spaces and 1 GB of files per space. Business costs 11.00 EUR per year, billed annually, and provides 11 GB of storage per person, pooled for the space. Removing a member does not revoke access to past messages, and losing the only device with unsaved keys can make that history unrecoverable.
Who it is for
It suits small businesses that want encrypted group chat and may need to include clients temporarily. Self-hosting may suit businesses that want to run the service themselves.
What is good
- End-to-end encryption is the default.
- Clients can join by link without guest accounts.
- Self-hosting is available at no charge.
- Spaces include reminders and morning summaries.
- The free plan includes every feature.
What to know first
- Free plan limits teams to three spaces.
- Free plan includes 1 GB of files per space.
- Removing a member does not revoke past-message access.
- Losing the only device with unsaved keys can make history unrecoverable.
Verdict
Eleven for Business combines encrypted messaging, client invitations and space-level tools, with browser, Mac and iPhone access and self-hosting. Consider its past-message access and key-loss limits when deciding whether it fits your team.
Eleven for Business plans and pricing
All plansCompared on secure team chat software
- Free plan
- Yes
- End-to-end encryption
- default
- Guest access
- Yes
- File sharing
- Yes
- Mobile apps
- ios






