The Apple guidelines say:
Apps that read or write data outside its designated container area will be rejected
What is their designed container area?
The Apple guidelines say:
Apps that read or write data outside its designated container area will be rejected
What is their designed container area?
Basically, it means that you should not write or read data to/from any other directory other than your own applcations directory.
e.g. you can update the sqlite DB of your another app from your own app unless there is a public API that allows that
Each Application is bound by its directory where it is installed. Apple restricts you from accessing the contents of another App through its directory from your App.