User interface needs improvement
This app has a lot of potential for facilitating the evaluation of physical therapy patients or for self-evaluation. However the user interface needs improvement. The app instructs users to place your phone either in your pocket or on your hip while taking measurements for the evaluation exercises. This introduces inaccurate measurements when the phone is placed in a pocket because the stop button can’t be accessed immediately when the timer stops. Perhaps the software developer could devise a way to start and stop the exercise timer with voice commands via Siri.