Untested Tonal Energy paid tuner app for iOS 5 or above.

[evanromeu]

Bought this years ago while I was in high-school band. Pretty neat tuner app with a tone generator function. app is usually paid.

TonalEnergy-iOS5 : sonosaurus : Free Download, Borrow, and Streaming : Internet Archive

Bought this years ago while I was in high-school band. Pretty neat tuner app with a tone generator function. app is usually paid.

archive.org