I want to advertise in an A4 sheet my app

I need of a very simple message with some picture in a A4 sheet in order to communicate to my customers who come into my firm that can download the app's firm for android and to get his personal report through it. The sheet must also contains a sort of image of the acceptance sheet sample(provided by me) with embossed numbers that serve to the customer to require his report through the app. The cheap price will have more possibility.