silBe by Silvy is a free Android app that offers a variety of fitness programs for users to achieve their fitness goals. The app provides a monthly subscription service called BeUNLIMITED that gives users access to all the programs available. With each program having a different focus, users can choose the one that suits them best, whether it's losing weight, building muscle, gaining strength, or improving their fitness level.

The app provides guided videos, approximately an hour long, for each program. These videos help users follow the exercises from start to finish. The app is suitable for all levels of experience, and users can choose to work out at home or in the gym.

The app provides access to four different training programs: BeLEAN, BeSTRONG, BeYOU, and BeFIERCE. Users can choose to follow the guided video or simply follow the exercise list.

The app also provides four nutritional guides that offer general recommendations for different goals, including maintenance, muscle gain, fat loss, and fitness for vegetarians.

In addition to the workout programs, the app also has a dedicated CardioHIIT section and sections dedicated to yoga and stretching.

It is essential that users consult their doctor before using this app to make any health decisions.