Although, as you say, some would look in the installed apps , most will not. In addition, these are not meant to be malicious. They are for employers and parents who own the phone and it doesn't matter whether the target knows it is there are not.
Although, as you say, some would look in the installed apps , most will not. In addition, these are not meant to be malicious. They are for employers and parents who own the phone and it doesn't matter whether the target knows it is there are not.