Quick Response Codes are commonly read using smartphone cameras & software. QR Droid is a free Android app. The camera software on many smartphones now has QR Code reading software built-in. As of January 2021, the new version of Chrome has the built-in feature to create a downloadable QR Code.
- Can contain much more data than a standard barcode and can be read with less error than a barcode.
- Often seen on product packaging, magazines and in brochures and on leaflets.
- Play an integral role in modern payment solutions such as Zapper and Snapscan.
- Used as part of many social media sites and apps, specifically when connecting to other users’ accounts.
|No error correction||Error correction|
|20 characters||3 Kilobytes = 7,089 characters numeric 4,296 characters alphanumeric||2 Kilobytes (Specialised tags can store 4 – 8)|
|Black & white||Color|
|Needs line-of-sight at correct angle||Needs line-of-sight but at any angle||Does not need line-of-sight and can scan through items|
|Close proximity||Close proximity||Active tag: 100m or more Passive tag: about 1m|
|Scan one-at-a-time||Scan one-at-a-time||Can scan in bulk|
|Read-only||Read-only||Can be read-only or read-write|
|Passive||Passive||Passive or active|
|Printed on item or sticker||Printed on item or sticker||Durable & reusable|