You must scan this QR code with a Barcode Scanner.No QR code reader on your Android device? Have a look at the free Barcode Scanner from ZXing.
Once the QR code has scanned, you can click on the link to download the .apk file straight to your device.
After the .apk file has downloaded to your Android device you can install it by simply clicking on it and navigating through the installation pages.
Follow the instructions that are shown on your Android device to finish the installation.
Учебники - make your own Android App, iPhone App. Free, No Coding Required