Spivi (www.spivi.com) is an interactive multimedia platform made for gyms and boutique studios.

It collects data such as power, cadence, speed and heart rate from sensors, combines everything with personal information such as age, weight and performance history it has on the cloud, and generates virtually unlimited visuals, including unique group simulation, leadboards, videos and more, all in real-time.

The data can automatically get uploaded to Strava after each class, via a transparent integration.
For more information – https://www.spivi.com/academy/syncing-spivi-with-strava/