The app can be downloaded from Apple's App Store and works like most other camera applications for smart phones. To take a photo, you tap a camera icon in the upper left corner of your screen, aim and shoot. You can then add filters, crop or tilt your photo, and share it on Facebook.
The new app is similar to Instagram, the photo-sharing app Facebook is in the process of buying for $1 billion. The acquisition, however, has not yet been completed.
Facebook didn't give details on when it might release a version of the app for phones that run on Google's Android operating system.