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Moreover, QR Codes can convey full URLs and text payloads, whereas proprietary app codes (Spotify / Snapchat / Facebook Messenger (retired?) / etc.) can only ho

by nayuki 5y ago

Moreover, QR Codes can convey full URLs and text payloads, whereas proprietary app codes (Spotify / Snapchat / Facebook Messenger (retired?) / etc.) can only hold maybe 100 bits, which is only enough to have a unique ID that you must query the server to be useful in any way.