Handshake Atlas is a networking contacts manager designed for managing conference contacts. Users can create and store entries for each contact, linking them to specific events. The app allows users to record follow-up promises associated with each contact. Users can also note details about their last conversation with each contact for reference. The main entity within the app is the contact, which includes information about the event and interactions. The app provides a simple interface to view and manage these contacts. Users can categorize contacts based on events attended. The app is focused on helping users keep track of their networking relationships.