Trillian
by Trillian

What Trillian is
Trillian is a messaging platform from Trillian, a maker founded in 2000 and headquartered in Connecticut, USA. It is available on Android, iOS, Linux, macOS, Windows, and the web, with API support also listed. The service supports channels and guest access, and message history is unlimited. Its listed integrations include Olark and Jabber, along with Global Relay, Active Directory, OpenLDAP, Duo, and RSA SecurID.
Trillian uses a freemium model. The Individual Free plan costs nothing and is for one user. Individual Pro costs $3.99 a month, billed monthly, for one user. Business and Enterprise plans each have a five-user minimum; their prices are not given here. This gives individuals a free option and a paid individual plan, while teams can choose plans with a minimum seat count. Trillian's range of desktop, mobile, and web platforms lets users access it across several device types.
Who it suits
Trillian suits individuals looking for messaging across mobile, desktop, or web platforms, especially if unlimited message history, channels, or guest access matter. Teams needing integrations such as Active Directory, OpenLDAP, or Duo may consider its Business or Enterprise plans, which require at least five users.
What it does well
- Available on Android, iOS, Linux, macOS, Windows, and web.
- Unlimited message history.
- Supports channels and guest access.
- Individual Free plan covers one user.
- Integrates with Active Directory, OpenLDAP, Duo, and others.
What to know first
- Business and Enterprise each require at least five users.
- Business and Enterprise prices are not given.
Limits
Individual Free is for one user. Business and Enterprise have a five-user minimum; their prices are not given.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Individual Free | 1 user | Free |
| Individual Pro | billed monthly · 1 user | $3.99 a month |
| Business | 5 users minimum | On request |
| Enterprise | 5 users minimum | On request |
As trillian.im lists them, read 20 Sept 2026. The maker's own page has the final word.
Getting started
- Visit the Trillian website.
- Choose a platform: Android, iOS, Linux, macOS, Windows, or web.
- Select Individual Free or Individual Pro for one user, or a team plan with at least five users.
Verdict
Choose Trillian if you want messaging with unlimited history across mobile, desktop, and web, or need its listed directory and security integrations. Individuals can start with the free one-user plan. Teams should weigh the five-user minimum on Business and Enterprise, and Individual Pro costs $3.99 a month.
Questions
Is Trillian free?
Yes. Individual Free costs nothing for one user.
How much does Individual Pro cost?
It costs $3.99 a month, billed monthly, for one user.
Which platforms does Trillian support?
Android, iOS, Linux, macOS, Windows, web, and API are listed.
Does Trillian offer team plans?
Yes. Business and Enterprise each have a five-user minimum.
What integrations are listed?
Olark, Jabber, Global Relay, Active Directory, OpenLDAP, Duo, and RSA SecurID.
Facts from Trillian's own pages
- Channels
- Yes · trillian.im, 20 Sept 2026
- Founded
- 2000 · trillian.im, 28 Sept 2026
- Free plan
- Yes · trillian.im, 20 Sept 2026
- Guest access
- Yes · trillian.im, 20 Sept 2026
- Headquarters
- Connecticut, USA · trillian.im, 28 Sept 2026
- Integrations
- Olark,Jabber,Global Relay,Active Directory,OpenLDAP,Duo,RSA SecurID · trillian.im, 20 Sept 2026
- Message history
- unlimited · trillian.im, 20 Sept 2026
- Supported platforms
- Windows,macOS,Linux,iOS,Android,web,API · trillian.im, 20 Sept 2026
- Paid from
- 3.99 · trillian.im, 20 Sept 2026
Where Trillian stands on Freedom251
- Team chat apps#18 of 63
