Aztec Code and QR Code are both types of two-dimensional (2D) barcodes, but they have some notable differences in terms of design, data capacity, and usage. Here are some key differences between them: Design: Aztec Code and QR Code have distinct visual designs. Aztec Code features a square or rectangular shape with a central bulls-eye pattern surrounded by concentric square rings. QR Code, on the other hand, has a square shape and consists of a grid of black squares on a white background. Data Capacity: Aztec Code generally has a higher data capacity compared to QR Code. Error Correction: Both Aztec Code and QR Code support error correction. However, Aztec Code generally has higher error correction capabilities, allowing for more effective data recovery in case of damage.