Train HOW, WHEN and WHERE you want with the new, completely revised fitness app from Coach Stef. WHAT IS HYBRID TRAINING? HYBRID TRAINING combines the best of bodybuilding and calisthenics. The goal is not only an athletic and defined look, but also a powerful body. In addition to the diverse training variants and workouts, HYBRID TRAINING also includes a well-thought-out nutritional concept. You have maximum flexibility and decide HOW, WHEN and WHERE you want to train! KEEP IT SIMPLE Our phil