Posting to Facebook with Twitterrific (Mac & iOS)
How do I make my tweets appear as status updates on Facebook?
One way is to enable the Selective Tweets Facebook app on your Facebook account. You can then end any tweet with #fb to make it appear as a Facebook status update. This way, you can choose exactly which tweets will appear on Facebook, and which will not.
Enable Selective Tweets for your Facebook account by going here.
However, if you would like every tweet you post to appear as a Facebook status update, the easiest way to accomplish this is to simply log into your Twitter account online and enable the "Post my Tweets to Facebook" option under your user profile. Once this is done, every tweet you post from Twitterrific (or any other 3rd party app) will appear there.