Samsung are targetting iPhone users by offering them the opportunity to switch phones for up to 30 days. It states on the promotion page that would-be applicants can only visit the sign-up page via an iPhone.
Applicants will have the choice of either the Galaxy S6 Edge, S6 Edge+ or the Note 5.
The promotion is currently only available on US carriers, and will cost a total of $1 for the entire 30 days trial. The phone of your choice will be shipped with an activated SIM and a tutorial on how begin your test drive.