2025-07-15 00:00:00 No ads Pro boxer timer. Workout, Calisthenics, HIIT. Exercise timers for home training and high-intensity interval training (HIIT) as well as boxing. You can easily push yourself to the limit by setting a time. We used a clear and easy-to-use design (UI/UX). 0. You can download and upload various timers which are user's shared timer.