EasyBeats 2 Pro Drum Machine (iOS) app for $1.99

EasyBeats is built from the ground up to be the quickest and easiest way to create great sounding beats. Despite being designed for fast and simple use you'll be surprised how powerful this tool can be for creating new beat patterns. Using either the inbuilt samples or sounds you have imported yourself you'll find it easy to compose amazing beats. With a fantastic pattern editor designed for easy drag/drop use, tweaking your rhythms will be a breeze.