QR code app on Play Store ripping people off for $100+ through shady trial scheme

With over two million applications in the Play Store, there are bound to be a few bad apples here and there. However, the creatively named "QR Code Reader-Barcode scanner & QR Code Scanner" might be one of the absolute worst apps in the entire marketplace. At over one million installs, there's a lot of dirty money in play if even a small fraction of people were defrauded out of roughly $100 each. On the surface, this QR code reader app by developer "QR Code Master" seems about as innocent as apps come. It even claims to protect you against malicious URLs, but it's not nearly as helpful as it sounds. According to reviews from the past few months, there's a clear consensus of dissatisfaction (aside from the not-at-all suspicious handful of one-word 5-star reviews).