Uilleann 5.0 for iPad, all five common keys in one app: D, C#, C, B, and B-Flat, fully tunable up to +/- 50 cents, is now available as a free update to existing users on the iTunes App Store:
Split chanter version (My personal favorite):
Website:
http://www.tradlessons.com/Uilleann.html
iTunes App Store Link:
https://itunes.apple.com/us/app/uilleann-play-traditional/id480235326?ls=1&mt=8
Single-piece chanter version:
Website:
http://www.tradlessons.com/Uilleann2.html
iTunes App Store Link:
https://itunes.apple.com/us/app/uilleann-play-traditional/id367318547?ls=1&mt=8