Querelous is a disruptive app for a disruptive technology. Why should creative graffiti be limited to human-readable materials?

See a QR code in the wild.

Use Querelous on your iphone to snap the QR code.

Querelous will decode the code, and search for a valid alternative that can be created by changing only a few pixels.

Uncap your black sharpie.

Follow the on-screen instructions, coloring in the indicated pixels to subtly subvert the code.

Recap sharpie and leave. Another QR code subverted!


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