Which scientific retail innovation did Apple introduce in 2013 that revolutionized customer authentication and engagement in their stores?

In the intersection of science and retail, some innovations have transformed how customers engage with scientific products. Companies that leverage scientific advancements often create revolutionary shopping experiences and build stronger customer loyalty. Test your knowledge about a groundbreaking scientific retail innovation that changed how consumers interact with technology and scientific products.

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Touch ID fingerprint sensor technology
Facial recognition checkout system
DNA-based customer loyalty program
Retinal scanning payment verification