My mom is going to buy me an iPhone, and she's going to put me in my aunts plan.
She already has 4 phones (all androids) which I think is 200? I'm not sure. (with me it will be 5 phones) I think it's a family plan? 1400 mins of calling. Unlimited texting and web.

But the problem is; My mom was worried that the iphone will change my aunts plan completely. Ive been reading about iPhone plans, and apparently they have to come with data plans for $30 right? But I kept reading and it says smartphones each need this. so does that mean androids need this as well? My aunt and cousin always download apps and etc.

So does this mean the iPhone doesn't really change the plan?
In total for me it'll be 30 for the data plan and 10 for my line? Since the minutes for calling and texting are shared.

So it doesn't change the whole plan?

I'm not interested in avoiding the payment or whatever. I'm completely fine with it. I just don't want to mess up my aunts plan.