You can make a call private by hiding your phone number in a few different ways, including using your phone's settings.

If you don't want people to know you're calling, you can hide caller ID by blocking your own number on both landlines and ...

If you want to keep certain apps out of the reach of other people, you can lock or hide those apps on your Android phone. I’ll show you how to use your phone’s built-in features as well as third-party ...