Interval Timer with Music is an Android-based application developed by PANsoft that offers a fully customizable timer for interval training. The timer is pre-configured to follow the TABATA Protocol, which consists of 8 sets of 20 seconds of workout and 10 seconds of rest. However, users can customize their workout time, rest, and preparation as per their requirements.

One of the prominent features of the app is the option to configure music for the workout and rest periods separately. The app also includes a countdown before the end of recreation and training, which is accompanied by vocal instructions to avoid constantly checking the device. This feature makes the application more convenient to use while working out.

Overall, Interval Timer with Music is an excellent application for those looking for a customizable timer for interval training. The app is easy to use, and its vocal instructions and music options make it a must-have for fitness enthusiasts.