Those who have version based subscription, they are allowed to use as they were using already. You need to pay a few bucks every year to renew your subscription. Now Trillian Pro has some other new features or the modified features like version based subscription will be yearly subscription. This does not means that Trillian Pro is over. There will be one extra thing that you will see ads inside Trillian windows. This means, the ability to sign in from multiple locations, themes, the activity history viewer, and every other minor feature previously available to Pro subscribers only, is available to everybody who is using free Trillian.

Recently, Cerulean Studio has released new version 5 of Trillian and they decided to add pro features into free one. You can also set it for IMAP and POP3 eMails notifications. With time, it got many new features like cross-platform installation, social networking like Twitter and Facebook, and instant messaging for multiple clients like MS Live messenger, Google Talk, Yahoo, etc. Trillian, by Cerulean Studios, is most famous application which was originally created for instant messaging for different messengers like Yahoo and MSN.

Trillian 5 pro for windows