Good evening, does anyone use the tune!it app? I find it very good, I have even created stretch files for this app, they are on the tune-it website. With slight modifications, they can also be used with airyware tuner.
Stretch is characteristic of a piano's identity and cannot be applied to the tuning of other pianos.
There are many discussions, however, in which I have demonstrated that the quality of these tuners, when compared to ear tuning, leaves much to be desired.