If you're looking to increase your pull-up count from zero to 50, 50 Pull-Ups by Smart Sport Apps is the perfect program for you. This Android app offers a pull-up scheme that is based on macro- and micro-periodization methods for muscle training.

The program is designed to make your pull-up training as easy as possible. You don't need any special equipment or gym membership to start. The app guides you through a series of exercises that gradually increase in difficulty, helping you build up your strength and endurance. The program also offers a customizable workout plan that adjusts to your fitness level and goals, making it perfect for beginners and advanced athletes alike.

Overall, 50 Pull-Ups is an excellent app for anyone looking to improve their pull-up skills. It's free to download and easy to use, making it a great addition to any fitness routine.