You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.

What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

You can use Uber promo codes to save money on free or discounted rides. Uber will even give you a $15 promo code just for creating an account.

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