Here is another interesting sequencer for iOS just released called PixiTracker. This is the new baby of Alexander Zolotov who also brought us SunVox. I love the full screen view that flashes the large sound icons!
“No time to delve into the big and serious music apps? PixiTracker is what you need! It is a simple and fun tool to quickly create musical sketches or chip tunes. Without requiring a lot of musical knowledge!” – Alexander Zolotov
For more info: warmplace.ru