A KeepSake message is a private message from a guest to the host, no one else can view it. The host can set the Keepsake unlock date to a few weeks, a month, a year later to share in the event with the rest of the guests. This is an opportunity for a guest to post a heartfelt message, a photo and a caption, from the moment that can be cherished at a later time by just the host or other guests if the host desires.