Why should only pipers have all the fun...
JustDrones supports the standard Uilleann pipes keys of Bb, B, C, C#, and D, and also the higher pitch keys of E, F, G, and A.
As you can see in the images below, I've also added an optional additional drone either a 3rd, 4th, or 5th scale tone above the root:
JustDrones Off:
JustDrones On, Key of D, 3rd Interval Drone Enabled:
JustDrones On, Key of G, 5th Interval Drone EnabledI learned this trick from Mikie Smyth, sounds great with a chanter or whistle in D:

Volume control of both the main and interval drones can be controlled independently and all settings are saved between uses of the app.
App submitted tonight to Apple, should be on the store next week for $0.99.
Cheers,
Michael