"Pull-ups on the bar - strivica" is a free iPhone app designed to help users improve their upper body strength through a structured pull-up training program. The app offers various levels of training on the horizontal bar, allowing users to progress and test their pull-up performance. With a goal of reaching up to 50 pull-ups, users can track their progress and challenge themselves to improve.

This app not only provides a systematic approach to pull-up training but also calculates the estimated calories burned during each training session. Created out of a need for consistent workouts and measurable results, "Pull-ups on the bar - strivica" aims to support users in achieving their fitness goals in a simple and effective manner.