The Sunny Sale – A clever use of a QR code

I like QR codes when they’ve got a really strong idea behind them. You might remember my post from a few weeks ago looking at guinness’ use of a QR coded pint glass? Well this is a similar idea for Emart, a supermarket chain in South Korea.

Their problem was a lack of business specifically during lunchtime hours. Cheil Worldwide cleverly solved this with a QR code that is formed by shadows.

This meant that the code could only be scanned between 12 and 1 each day. A brilliant solution which can be seen in action in the video below, along with the sales growth statistics since it’s been in use.

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