Verbs, one of the best IM clients in the App Store, has gone free for today only. This means that you can download Verbs for free within the next 24 hours instead of the usual $2.99.

You can also get an in-app purchase of Verbs Pro for $4.99, which allows you to stay online with iOS multitasking for up to 7 days. Not only that, but the app is universal, and has one of the best iPad interfaces to date.

We reviewed Verbs awhile back, and to sum it up: the UI is so good that it looks like Apple designed it. It’s a shame that this wasn’t a runner-up for Apple’s Top Apps of 2011.

You can download Verbs for free today in the App Store.