The Boxing Timer (MMA, Tabata) app, developed by Grechkin Mikhail, is a free lifestyle application that offers boxing, amateur boxing, and tabata timers. The app allows users to add and customize their own sport timers, making it a versatile tool for a variety of workouts, including crossfit training.

One of the key features of the app is the ability to set the time for preparation, rest, and work, as well as the option to set a signal for the start, end of a round, and a warning signal up to 10 seconds before the round ends. This makes it easy for users to track their workouts and stay on track with their goals.

Overall, the Boxing Timer (MMA, Tabata) app is a useful tool for anyone looking to improve their fitness routine and stay on track with their workouts. With its customizable timers and easy-to-use interface, the app is a great addition to any fitness enthusiast's toolkit.