I’m Oliver Sjöström, fitness trainer and founder of OSX. My workouts have helped millions of people worldwide get stronger, leaner, and feel confident in their bodies. Through my YouTube channels and coaching, I’ve built a community focused on real training, real food, and real results — no quick fixes or gimmicks. Here inside my app, you’ll find the exact structure I use with my own clients — follow-along workouts, nutrition plans, and simple daily habits to help you stay consistent and reach your goals.