So disappointing – insTuner - Chromatic Tuner with Tone Generator Review

This app does not function on my iPhoneX nor on my wife’s iPhone XS . It will work for a second and then not work for five seconds, which makes it impossible to tune. A tuner must have a continuous and smooth response, or else it is useless. It would be awesome if it would just work and do what it claims to do.
Review by nanoguitar on insTuner - Chromatic Tuner with Tone Generator.