Since I currently do a retraining as an electronics technician for devices and systems, I am even after brief skim through the App amazed what's here clenched know it and can recommend this app with a clear conscience !!! The star trigger there because I had discovered a menu item called "Every Circurit" and wanted to install it. I could not find in the Download only Amazon App Store and when I tried to look after the complete name of the menu item again, this was completely disappeared. I have already sat down with support personnel and am now waiting for response.