Not very good – SmartMirror - Automatic lips and eyes tracking and zooming mirror Review
I deleted it from my phone. I found it didn't work very well and it kept on zooming in and then out. The voice recognition wasn't super good, but it still worked pretty well. And for the people who said the beeps were annoying, you can change it in the settings.
Review by Phifafia on
SmartMirror - Automatic lips and eyes tracking and zooming mirror.