The app, which launched yesterday (Thursday), includes a string of features which help people live the life of a socialite.
As well as sharing a 'playlist' of her favourite songs, TV shows and movies, Paris will upload personal photos for her fans to see.
A 'BFF' feature even allows people to insert the heiress in their own photos and e-mail them to their friends.
'I wanted to make it personal to me,' Paris has said. 'There's a thing called Hot or Not Hot where you upload a picture and people can vote on you.
'There are some tips and things that I do. It's a lot of fun.'
The Paris Hilton app, which was developed by Velti, is available to buy from the iTunes App Store for $2.99.
Android and iPad versions of the app will be available in the coming weeks.