A reader whom I won’t name worries that his cousin watches what he does on his Android phone. The cousin actually told him so.
It’s possible that your cousin is just messing with your head. Ask for proof—such as texts you’ve sent and received.
On the other hand, they may actually be spying on your phone. There are a surprising number of Android apps that can do just that.
[Have a tech question? As Answer Line transitions from Lincoln Spector to Josh Norem, you can still send your query to email@example.com.]
But first, let me clarify one thing: No one is tracking you via your phone’s IP address. Take your phone on a morning jog, and its IP address will change three or four times before you get home.