What's the cheapest iphone company with unlimited text and messaging?

I don't care how new the iphone is (preferrably at least an iphone 4) i just want to keep my iphone as long as its got unlimited internet and texting… Calling i don't care too much about but unlimited that would be cool too if its not outrageously priced.

Service i care about but not too too much… Half way decent wouldnt be too bad. I don't care how popular the company is as long as its fairly cheaper than $100 a ****** month with AT&T… It might even be like $5-10 more than that… Such a waste haha. My moms taking me off her plan because i'm old enough to pay for it, sorry this is so long. I really appreciate the help… Oh and if anyone knows a good phone similar to it with all the perks and speed an iphone had for a fair enough price (preferably around 50-60ish a month i'm open to that too).

Also it won't let me edit the question but i think i need to get internet at home too. Like a router and the whole deal, anyone got any recommendations for a fair price with good/fair speed for gaming maybe… Thanks

T mobile is cheap for families. I think boost or cricket is your next option at 50-60 dollar unlimed everything.signal isn't great tough. And for home internet not sure but if i were you. I would get the 50mb per sec and xfinity tv for like 90 buks a month.

Probably smart talk, but when you go cheap you won't get hardly any LTE etc.

VirginMobile. Unlimited text and web for 35.00$ with 300 anytime mins (5 hours)