Use APKPure App
Get QR code Barcode scan and make old version APK for Android
Scan the Barcode or make your own
Scan and decode QRcode and Bar code.
Save and Share the file.
Upload to dropbox.
make your own style QRcode.
Merged the QR code and pictures in the smartphone.
You can decide where QR code locate in the picture.
Save and share the file in real time.
Totally free.