Which carrier is better for a family plan?

My parents and I, want to get iPhone 6 or even 5s, with a good carrier and good price. We were told by a women that her and her family of 4, all have iPhone 6's with a 2year family contract from AT&T for about 140 a month, I want to know if that's true? Don't have time to call AT&T themselves that's why I'm asking here, thank you!

Hopefully this "woman" also gave you the name of the plan/promotion she and her family signed up with, because without that information, you won't know what to ask for or even if that promo is still being offered. Because whatever the monthly billing is, will all depend on if you bought the phones outright, or are paying on each phone monthly, for 24 months.

AT&T does have several different offers that may end at any time, so you will HAVE to call them to see which one fits your needs best.