Twitter is going to have an official app for the iPhone at last. The company says it has inked a deal to acquire iPhone Twitter app Tweetie for an undisclosed amount of money.

In a blog post, Twitter CEO and co-founder Evan Williams said that the company decided it needed to have an official iPhone app after an “analysis of the Twitter user experience in the iTunes AppStore revealed massive room for improvement.”

“People are looking for an app from Twitter, and they’re not finding one. So, they get confused and give up,” he said. “It’s important that we optimize for user benefit and create an awesome experience.”

Twitter will rebrand the Tweetie app as Twitter for iPhone and offer it for free. Tweetie currently costs $2.99 to download.

Twitter has also hired the app’s creator, Loren Brichter. The company said it plans to leverage the app and Brichter’s expertise “to create additional innovative tools and integrations for users.”