Trillian 4+

Modern and secure messaging

Cerulean Studios, LLC

    • 4.2 • 492 Ratings
    • Free
    • Offers In-App Purchases


Trillian is both a free instant messenger for individuals and a powerful business and clinical communication platform used by companies and healthcare systems of all sizes. Here's how we can help you:

• FOR BUSINESSES: Does your business still rely on texting or cumbersome email chains? Let Trillian's modern and secure business instant messaging modernize employee communication without compromising on security or control.

• FOR HEALTHCARE: Your healthcare organization needs secure instant messaging, and Trillian's HIPAA-compliant secure messaging platform has you covered. We help teams of all sizes improve clinical communication without breaking the bank.

• FOR INDIVIDUALS: Stay in touch with family and friends without compromising your privacy. Your unique Trillian username can be used to send unlimited messages free of charge over your existing data plan and/or WiFi.

Whether you're looking to empower secure employee instant messaging or just to keep in touch with family and friends, Trillian can help. Thanks for checking us out!

What’s New

Version 6.6.73

Bug fixes. Full changelog:

Ratings and Reviews

4.2 out of 5
492 Ratings

492 Ratings

rAllcorn ,

Valuable asset, but missing a couple of items…

The trillion chat utility is an awesome program, and I love many of its features!

I don’t like the fact that it doesn’t seem to be real iOS friendly and that it doesn’t support a selection of a paragraph with the “speak” option. This is really important utility. So, if you’re driving and don’t want to read the text to be safe, you could reach down and tap it and tap speak and have it read the entire message to you. That works in Google hang outs/Google, but not in this app..

I also wish, like the Google app, but it had the option of a voice/phone call, or video conference like many of the other apps. Then… I wouldn’t need the other apps!!

I’m not sure why they have a login separate for the app, did you have to pay for to get premium features… The app is good all in all by itself without those features. I don’t know that I’ve ever chatted with anyone with their truly an ID, but rather use other ideas with other services.

All in all, it’s a great program, and I highly recommend you get it! Of course I would prefer a pigeon, a Linux utility that also works in Windows, and used to work in macOS… But we can’t always have what we want.

Gregory and Tammy ,

Some more features needed...

I use Trillian at work. It is a great app for communication around our hospital and even within our clinic. It could almost replace my pager except for a few key things surrounding the notifications. They are just not annoying enough. The trillian noise is so soft and soothing that it is really easy to ignore. I wish there were options to use a different noise (something more annoying) and set it so that it continues to repeat a notification until it is read or actively deferred. As it exists right now I still have to carry a pager becuase I often miss the mobile notifications becuase of the above reasons. I think this is a simple fix and it would really make this a 5 star business messaging solution for hospitals and clinics. Thanks.

SirenKnight ,

Great FREE app for more than a decade- Thank you!

I’ve been using this app for probably 15 years or more. I paid for premium for one year and wish I’d have just done the lifetime membership because I love this app and use it over every other one for chat.
I loathe other chat apps (FB messenger can go diddle in the corner). Thank you Trillian for making a TRUELY FREE TO USE app that does as promised.
Thank you for not removing features every year in an effort to force us to pay. Thank you for offering incentives to go premium. Next time that lifetime member deal pops up, I’m taking it.
Because I thank you for making it simple, convenient and consistent enough that I can keep using the same app without having to start over.

App Privacy

The developer, Cerulean Studios, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Contacts
  • User Content
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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