Where is the presence app tutorial? Craig Conover December 14, 2020 14:30 Updated See this Presence detection tutorial published as a PubNub blog article. Related articles How do I track presence of unique clients? Can I add data to presence UUID? How do I use the start, end and count parameters in a history request? How long can messages be stored? Can PubNub call my server via Web Hooks when presence events occur?