Design for guitar has frustrating gaps of function
The note tone detection fails on roughly 10% of the time despite quiet environment and iPad Pro gen3 audio. Given tuner apps work correctly should be straightforward to get right. The app regularly presents Eb below the low E of concert tuning, and gets stuck since that’s unplayable. A classic off-by-one “fence post” error that should be easy to scrub. This is all came to light after about an hour of use so not deep or difficult to discover.