Double A QR Rewards is a free iPhone app developed by Chatchawan Tulaphol. This app falls under the category of Business & Productivity. With Double A QR Rewards, users can accumulate points by scanning the QR codes found on Double A paper boxes.

To participate, users need to register for the activity and scan the QR code on the Double A paper box. Each QR code scanned equals one point. Users can then redeem their accumulated points for various rewards or enter to win exciting prizes.

This app is compatible with Double A paper boxes of different gsm, including 70 gsm, 80 gsm, 90 gsm, and Double A Green. Please note that only boxes with specific activity details are eligible for participation.