Cohort is a code framework that helps artists & activitists run interesting events for groups of people using mobile devices.
Cohort has been used on projects like:
Cohort is maintained by Jacob Niedzwiecki. It consists of a Node+Express server and client packages for iOS (ObjC & Swift), web (JS), and Unity (C#). Sound, video, and AR content can be cued on clients from QLab or the Cohort web platform. Features currently under development include push notifications, geolocation, and VR/360 video.