Does not work! 😤
Shortly after downloading this app and reading the instructions it asked to get the full version for £5.00… And £5.00 for nothing!! Even by increasing the sensor sensitivity, the best reading I could get was a value of 20 which did not stabilise (as I moved across the wall that same reading extended to every location on the wall I was scanning through). I found another app (free this one!) with a very similar logo and it worked just fine by adjusting to the right sensitivity until I got a signal. If you are considering this app like I did pass your way!