Hi people who still read this!
Apple recently decided that old apps that haven't been updated for a while will get purged from the App Store, and three of mine are now not available: Enumero, Banshee, and Tondo.
I've actually wanted to update Tondo and Ellipsynth for some time, and they may be back at some point in refreshed form.

Banshee, I don't think anyone cared about, it had about 374 sales over its lifetime. I'll definitely reuse some of its ideas, though. I have a funny variant that says the name of the note you are playing at you!