Open Scanye in your browser and log in.
Click on your email address and choose "Aplikacja mobilna" from the menu
Download the app

Choose
Generate a QR code to connect your device
Click on the green button "Generuj kod"
Open the SCANYE app on your mobile device and log in to your account by scanning the QR code.
After scanning the QR code or logging in with your email address and password, you are all set.