Business Insider: Snapchat, which is built on photo and video messages that disappear after a few seconds, has been letting its users replay one snap of their choosing every day for the past two years. Now, Snapchat users will be allowed to replay more snaps, but it will cost them. They’ll be able to purchase three replays for $.99 to use whenever they want, but they can’t use them to replay the same snap over and over again.