Application usage:
💗 With this app, you can measure your heart rate.
🎵 You can count the tempo of a song.
🕑 You can count any tempo in beats per minute.

Features:
🎤 Microphone based BPM Counter.
👆 Tap based BPM Counter.
👀 Very quick and easy to use
🧐 Fancy & friendly user interface
✔ Free to download

How to detect the beats per minute:

Microphone based: The app can detect the hearing song B.P.M using the mic.
Tap based: Simply keep tapping the button to count the average BPM. Needs some continuous taps to stabilize.