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Has anyone found any similar information on Apple's codes used for App Clips? They are round, with five concentric circles formed of dashes. I've been googling

• dagmx 5y ago
  There haven't been any analysis to the best of my knowledge. I saw some Twitter threads early on with people trying to figure it out but those efforts seemed to have died out.
• herval 5y ago
  Apple's code is a simple circular barcode, essentially. I worked in one such format long time ago (ShotCode) - they have some benefits like resistance to motion blur and being easy to parse in low res cameras (compared to qr codes, for instance), but can't encode a lot of data (main drawback). ShotCode's reading algo is proprietary, like Apple's, but they're rather simple to implement. some analysis here: https://www.xeraina.ch/reports/P6_2015_Circular_Codes.pdf https://www.xeraina.ch/reports/P6_2015_Circular_Codes.pdf