> Phone hardware (cpu type, number of course, hardware ids, screen dimensions, dpi, memory usage, disk space, etc)
> Other apps you have installed (I've even seen some I've deleted show up in their analytics payload - maybe using as cached value?)
> Everything network-related (ip, local ip, router mac, your mac, wifi access point name)
> Whether or not you're rooted/jailbroken
> Some variants of the app had GPS pinging enabled at the time, roughly once every 30 seconds - this is enabled by default if you ever location-tag a post IIRC
> They set up a local proxy server on your device for "transcoding media", but that can be abused very easily as it has zero authentication
Wait a minute - Why was Android or iPhone - built by West allows everything... Or if tiktok are the topdog in writing apps and FB missed out on writing these? Sour grapes?