Drumtapz is a free sixteen pad drum playing app. There are sixteen drum sounds assigned to the pads on the iPad version and two banks of eight pads on the iPhone version. For rapid playing there is a re-trigger pad that plays the drum sound of the last pad touched for rapid playing of the same sound. Volumes are individually adjustable.
Instead of a metronome to play along with, we have included a single channel programmable step playback mode called the step metronome. Any of the sounds can be assigned to the step metronome and the tempo can be adjusted from 20 to 220 bpm.