deleting resources from the last scene in Storyboard API

hi All,
I am using the functions exitScene and destroyScene to remove all my resources like images, sprites, sounds, event listeners etc.

Will these functions be called if user exits my app (using back button or home screen button)? Or will Android or iOS remove all allocated resources anyway if the application is killed? [import]uid: 144827 topic_id: 32626 reply_id: 332626[/import]