FAN N STAR is a free Android app developed by 더팩트개발팀. It is a popular idol ranking site operated by THE FACT. Users can vote for their favorite K-POP idols through the app. The voting is conducted based on Artist Ranking and Individual Ranking, with different benefits for the 1st place idols in each category.

In addition to voting, users can collect fun points for free through various activities such as attendance checks, viewing articles, and sharing. The app also provides channels for each star, allowing users to share information about their favorite idols.

Furthermore, FAN N STAR offers events like birthday celebrations and debut anniversaries to help users build up their idols. The app also provides customized contents to create a connection between users and their idols, such as finding the perfect match groom or bride.

Users can also enjoy various cultural activities like movies, acts, and reading events through the app. FAN N STAR provides real-time notifications for idol ranking movements, event updates, and the availability of star customized contents.