Kim Kardashian cannot believe how successful her new app is.

The reality TV star, who launched the mobile game called 'Kim Kardashian: Hollywood' on June 25th, is "so excited" about its overwhelming popularity.

Since so many people have already purchased the app, Bloomberg News estimated that it is set to earn a huge $200 million.

Kim recently spoke of the surprising success to E!News, stating, "This project has been an amazing experience. I'm so excited that people are enjoying the game!"

"I partnered last year with a fantastic company called Glu Mobile to create what is now the No. 3 Free and No. 5 Grossing game on the Apple App Store, she continued. "We collaborated on every aspect of the game's design details and continue to do so with the updates we are bringing out."

The Kardashian sister also expressed how grateful she that fans are giving her positive feedback about the game over Twitter.

"I love that fans are constantly telling me on social media their favorite parts of the game and even offering suggestions," Kanye West's wife added. "We're working really hard to integrate fan feedback and we've already added one of my favorite vacation spots to the game!"

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"There's so much more to come, including plenty of cute new looks and exotic locations," she concluded.

The CEO of Glu Mobile Inc. (GLUU), the games' creator, Niccolo de Masi, also recently said, "It might be our biggest game of the year. We're not surprised. Kim is a one-of-a-kind talent with an incredibly precise fit to the game engine that we tailored but already had in the company."

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The app, which allows users to create their own celebrity and customize a new look, is currently free to download, but players can pay to become more famous.

Kim Kardashian game
'Kim Kardashian: Hollywood' is set to become one of the most successul apps of the year