Why caption-based analytics differ from video analytics
Most event platforms measure analytics on the video stream. EventRecast measures them on the caption stream, which is a different — and arguably better — signal. Captions are read actively; video can be running in a background tab. A viewer who's reading captions is paying attention.
The difference shows up in the data: caption-based concurrent counts are typically lower than video-platform 'attendees' but more accurate as a measure of who's actually engaged. For sponsorship attribution and program decisions, that's the metric you want.