Swap spare stickers, face to face.
Type the numbers you already carry: duplicates you can spare, and the ones you still need. Show a QR code. The other person opens it. You both see what to hand over.
Open the appFan meetup · not affiliated with any brand.
How a swap works
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Write your list
Type or paste numbers and ranges. The format looks like this: 1, 4, 17-20. Tap a number in the grid to move it between HAVE and NEED, or to remove it.
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Show your QR code
The code is a link with your list in the address. Nothing is uploaded.
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Hand them over
The other person opens the link. You both see which stickers you give and which you get.