So many apps have telemetry and data collection and notifications that eat up your battery and bandwidth for business (no good) reasons.
I ran this app call Adblock which creates an on-device VPN (checks dns request)
Found for example the kindle (or audible?) app still does telemetry even if cellular data is turned off (to a2z.com)
So many apps have telemetry and data collection and notifications that eat up your battery and bandwidth for business (no good) reasons.