The DEFSEC Atlantic 2021 Digital Show Guide & Event App provides a wealth of information about the event taking place on October 5-7, 2021 in Halifax, Nova Scotia, Canada. It provides access to lists including exhibitors, sponsors, and attendees. Maps of the exhibition space and venue are provided, as well as schedules, event documents and announcements. It also acts as a communications tool between attendees via in-app messaging and doubles as a digital notebook with its note-taking feature.