Is it possible 'to track kids without them knowing' or in a hidden manner on iPhone & android mobile phones?

It depends on the parents and their children.

CatchMe is not biased to any kind of human differences. In order to maintain the privacy and flexibility of the user, the standard process- to access the live locations of another user, starts with the 'request.' With the acceptance of the request, the another user has access to live location.

However, the person (child) below the age of 18 has to make aware to their parents or guardians that they are using CatchMe application. It is clearly defined in our Terms and Conditions.