Tap Tempo - Delay Calculator is a free Android app developed by Rivas Apps. It falls under the category of multimedia and subcategory of music and radio. The app is designed to detect the beats per minute (BPM) of any song and calculate delay times.

The user interface is simple and easy to navigate. The app offers a tap tempo feature that allows the user to tap along to the beat of the song and determine the BPM. The calculated BPM is displayed on the screen, and the user can then enter the desired delay time in milliseconds. The app will then calculate the delay time based on the BPM entered.

Overall, Tap Tempo - Delay Calculator is a useful app for musicians and sound engineers who need to calculate delay times for their equipment. The app is accurate and easy to use, making it a valuable tool for anyone working with music and sound.