It doesn't explain it alone, especially that there is a sudden drop, as if on January 21st, all Apple users updated to iOS 14 and enabled MAC randomization, which is practically improbable.
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same for me. This being said, I think it is much more accurate right now. I have a retail store, I think it used to count the cars' WIFI, now it counts only the pedestrians WIFI, which is much better in my use case.
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