Fitbod - Personalized Strength-Training powered by Machine Learning
Metastream - Watch streaming media with friends
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.
StreamParty - StreamParty is a watch communiry, that allows you to watch video streams in sync with the people you care about, on multiple services.