Muscle Premium Subscription is a medical lifestyle application developed by VB Learning, exclusively for institutions with subscriptions and for promotional purposes. The app focuses on providing an in-depth understanding of the human muscular system. The content in this app is accessible through two ways, by entering a unique username and password provided by the institution or by accessing it from within the institution's network.

It is important to note that usernames and passwords are not sold separately by Visible Body or available for purchase within the app. If a user has not been given a username and password or if the institution has not subscribed, the app will be locked and unusable. However, there is a version of the app that does not require a username and password or subscription, which can be found by searching for Muscle Premium by Visible Body.