Instructions to scan QR codes on Apple devices

Apple iPod touch 3rd generation Apple iPod touch 3rd generation
Apple iPod touch 2nd generation Apple iPod touch 2nd generation
Apple iPod touch Apple iPod touch
Apple iPhone XS Apple iPhone XS
Apple iPhone XS Max Apple iPhone XS Max
Apple iPhone XR Apple iPhone XR
Apple iPhone X Apple iPhone X
Apple iPhone 8 Plus Apple iPhone 8 Plus
Apple iPhone 8 Apple iPhone 8
Apple iPhone Apple iPhone
Apple iPhone 3G Apple iPhone 3G
Apple iPhone 3GS Apple iPhone 3GS
Apple iPad Wi-Fi Apple iPad Wi-Fi
Apple iPad Wi-Fi + 3G Apple iPad Wi-Fi + 3G
Apple iPhone 4 CDMA Apple iPhone 4 CDMA
Apple iPhone 4 Apple iPhone 4
Apple iPad 2 CDMA Apple iPad 2 CDMA
Apple iPad 2 Wi-Fi Apple iPad 2 Wi-Fi
Apple iPad 2 Wi-Fi + 3G Apple iPad 2 Wi-Fi + 3G
Apple iPhone 4s Apple iPhone 4s