Beep Test SF is a free fitness application available for Android devices developed by PWSZ Krosno. It is a part of the interventional research program called StudentFit, which aims to promote physical activity among students. The app is designed to help users assess their fitness level by performing a beep test, also known as a shuttle run test.

The test involves running back and forth between two markers placed 20 meters apart, following the beeps. The interval between beeps gradually decreases, making it more challenging to keep up. The app records the user's level and provides a fitness rating based on age and gender. The app also includes a history of previous tests, allowing users to track their progress over time.