Tweetie
Used by 16 peopleen.wikipedia.org ↗

“I doing my Tweeting through Tweetie.”
Aaron James Draplin Interview, Designer, guitar player, badass · via Uses This 
“I'm on Twitter all day (I like the Tweetie for Mac application) and I like to keep Bit.ly Pro open to have an eye on traffic.”
Thessaly La Force Interview, Writer, editor (The Paris Review) · via Uses This