Another issue (besides the privacy issue) is that it may be annoying for pets. Dogs and cats can hear these sounds. Also the apps on the phone have access to t

Another issue (besides the privacy issue) is that it may be annoying for pets. Dogs and cats can hear these sounds. Also the apps on the phone have access to the microphone (even though they probably do not need this permission for any other purpose), so these apps are all potential listening devices.