: It was reportedly named after a sushi restaurant called "Katana".
If you have found a file with this name on your device or a hosting site, it is usually: Saturated internal storage - com.facebook.katana : It was reportedly named after a sushi
: This is the official package name (technical identifier) for the Facebook application on Android. jpg : The standard image file format for the screenshot. What is "com.facebook.katana"? : It was reportedly named after a sushi
: The name was intended to represent an app with "multiple layers," similar to how a katana sword is forged. : It was reportedly named after a sushi
On Android, every app has a unique package name used by the system for identification. "Katana" was chosen as the internal codename for the Facebook app by its early developers.