Four years ago, then-Sen. Barack Obama made his vice presidential choice public by sending a mass text message to supporters. On Tuesday, Mitt Romney's campaign announced it will make its announcement through a smartphone app.

The campaign launched an app called "Mitt's VP," which will send the news straight to a smartphone using push notifications and then allow the user to easily spread the word on social networks like Facebook and Twitter.

"The first official way to learn the name of the Republican Vice Presidential candidate is by using our new 'Mitt's VP' app," said Romney's digital director, Zac Moffatt, in a statement. "Users of the app will be the first to get the news on the biggest political decision of the year through an instantaneous alert on the one device most people carry around the clock—their phone."

The campaign promises supporters that they will receive the news "before the press," although in 2008, word leaked out that Obama had chosen Joe Biden before the campaign was able to send the text message.

Beth Myers, the campaign adviser in charge of Romney's search for a running mate, said the decision would be announced "soon."

"Soon everyone will know who Mitt Romney selects as his vice presidential running mate," Myers said. "With this new app, users can be the first to know the second member of America's comeback team."

The app is available on iPhone and Android phones.