Klein: Athletic Training app for iPhone and iPad

Introducing Klein, the trending training app for individuals looking to maximize their performance in various domains. Whether youre an athlete, coach, or simply someone focused on improving physical fitness, Klein is the digital training tool designed to help you reach your goals. With a wide range of customizable strength and mobility programs, it’s like having a personal training coach right at your fingertips.


Free to Use

Klein is free to use, giving you access to powerful training tools without any required payment. You can explore workouts, track progress, and take advantage of expert-designed programming at no cost. For those looking for additional features, premium options are available—but the core Klein experience is always free.


General Training

Develop strength, build muscle, and improve overall fitness with structured training programs. High workout variability ensures you stay engaged and challenged.


Sports-Specific Training

Specialized programs for soccer, basketball, football, baseball, volleyball, wrestling, and more. Whether youre a professional athlete or a recreational enthusiast, Klein provides the resources you need to excel in your sport.


Dynamic Exercise Selection & Programming

Our adaptive programs take your specific needs into account, including your position within a sport. Whether you’re a quarterback or a lineman, Klein tailors your workouts to match the demands of your role for effective, results-driven training.


Video Demonstrations & Tutorials

Access high-quality video demonstrations for every exercise, allowing you to perfect your form and technique. Slow down videos for closer analysis and follow detailed text descriptions to maximize the benefits of each movement.


Expert Guidance & Support

Our programs are designed by certified professionals, including individuals with Ph.D.s, CSCS, and USAW weightlifting certifications. Have questions? Our support team is available through our website and at [email protected].


Community & Social Features

Join a community of athletes and coaches, connect with your team, and train together using the Klein Strength Coaching Tool. To create a team and engage in friendly competition, our sales team is here to assist you.

Take control of your potential and unlock your best self. Get started with Klein for free today—no commitments required. Experience the ultimate training app built to support your unique fitness journey.


Terms of Use: https://kleinstrength.app/TermsOfService/