Can somebody with an iphone track your location?

Well i have broke up with my abusive boyfriend after numerous death threats and abuse. I have recently moved so he can't find me as he keeps callin sayin he is going to kill me and that he can tell off his iphone the area i'm in we both have iphone 5 is this possible? I'm really scared in case he can somehow track where i'm he has threatend to stab me and burn me cut me up slit my throat ect i'm so scared i'm 18 he is 30 please can you tell me if its possible to track where about somebody is thank you so much! And also if there's privacy settings on iphones as he says he can watch me throughh the front camera like snapchat ect? I have only just got the iphone a couple months back so i'm not entirly sure how it works thanks very much

First of all, you should probably contact your local authorities immediately if your situation is as bad as you say.

As for your iPhone, unless he's a expert hacker (or works for the NSA), he can't watch you through the Front Camera unless your sending him pictures/videos or video chatting with him.

If you have *"Find my iPhone"* or "Find my Friends" or any other apps where you willingly allow other "friends" to view your current location, he is able to track you.

*Regarding "Find my iPhone", it's only a problem if he knows your Apple ID and Password.