You can share your Augmented Reality scenes with others by snapping a photo with the camera button and then using your favorite photo sharing medium (Text Message, Facebook, Twitter, Instagram, etc!).
To perform an operation on an object, touch the object and then tap the button of the operation you wish to perform. Operations will apply to the object that was most recently modified.
You can add a light source into the scene by tapping the add light source button.
Tap the object and then pinch your fingers to increase or decrease the size of the object.
Nothing, it is free!
Yes, your scene will still be saved. However, please be aware the positioning of your objects may be slightly altered.