Volt - Volt is a reactive web framework where Ruby code runs both on the server and the client (via opal).
Fitbod - Personalized Strength-Training powered by Machine Learning
Calm Radio - Calm Radio is a music streaming alternative that offers calming music. Listen to classical and relaxation music for work and sleep, online jazz music with nature sounds, meditation and world music available on our Calm Radio app.
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.
Padrino - Padrino is a Ruby web framework built upon the Sinatra web library.
Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.