This feature had been announced on the Brian Enos forum in 2013.
You can use a standalone QR Code scanner app to register competitors in the PractiScore app on Android device. For example, ZXing Barcode Scanner app or QRky: QR Code Generator & more or other apps that allow to follow the URLs retrieved from scanned QR Codes.
The QR Code just need to encode URL in the following format:
psc:<First Name>:<Last Name>:<Division>:<Power Factor>
The easiest way to create QR Code up front is to use Google Sheets and use the following formula for QR Code:
You will get something like this:
Competitors can also use an app to generate QR Codes on their phones using one of QR Code maker apps: