This App is not just a metronome but you can create your own beat with kick drums.

What you can do with this App is that -
you can choose a kick drum sound from 55 drum machines.
you can set BPM between 60 to 180.
you can create a random pattern with 8 kick drums.
you can distort the sound.
you can mix the sound which comes from each speaker by using fader.

NOTE that this App is NOT serious metronome. If youre looking for quite precise functioned metronome, then this App is NOT for you.
But If you like the sound of kick drum to play around with, then this App is for you.

Usually Kick Boom Metronome iOS app used & searched for

metronome app, bearbox, metronome beats, boom boom speaker, pro metronome, drum metronome, kick boxing, metronome m1 free, and other. So, download free Kick Boom Metronome .ipa to run this nice iOS application on iPhone and iPad.