#TMobile USA sends mobile phone usage data to #PushSpring, which T-Mobile acquired in 2019.
T-Mobile assigns a unique ad ID to your cellphone and gathers app usage data.
To opt out and remove all data of you, there's an app - "magenta advertisements platform".

For me it's horrible that they do so without telling and that the app is somewhere hidden - no one would come up with that name!

#mobile #advertising

For #Android (I don't know whether they do it on iOS, too):

https://play.google.com/store/apps/details?id=com.pushspring.preferences