TikTok found to have tracked Android users’ Mac addresses until late last year
techcrunch.com
techcrunch.com
And even more important, there are plenty of analytics, crash report, tracking and I don't know what else third party services with their SDKs, usually doing the collection of data. I am juts not sure why are they never mentioned.
> TikTok appears to have exploited a known bug on Android to gather users’ MAC addresses,
[0] https://play.google.com/store/apps/details?id=com.ubnt.usurv...