Learn the fastest ways to scan barcodes and QR codes using your iPhone or Android smartphone. No special app needed for most ...

You can scan a Snapchat code for your own profile or a friend's using the app's camera screen or your mobile device's camera roll. Before you scan a Snapcode, you will need to go to a profile and view ...

If your Android device is not scanning a QR code, make sure the code is properly framed on your screen. Cleaning your camera lens and getting better lighting on the code are other potential solutions.