What is a great moblie company? Best carrier?

Has unlimited everything with low price. Works great everywhere you go. Affordable for a teenager. For an iPhone 5s. No contract.

Lowest price is probably straight talk, sprint is better priced too, otherwise if you want faster service you need to pay more for verizon or at&t

  • Virgin moblie? Iphone 30$ a month? My dad saw a comerical for iphone that are only 30 bucks a month, and he said he would look into it. But he hasn't. Yet I was wondering how to speed up the process and get a iphone
  • Is the T-moblie, Simple plan worth using on Iphone 4s? I'm recently on straight talk & so far it was alright. The service was okay although my internet was very slow and i couldnt send pictures to any other phone besides an iphone. I went to straight talk because i didn't want to have a contract. Now i've seen on T. V that T-molbie has a 70 plan on 4G and its unlimited. Does anyone have the plan? Is it worth it investing in?
  • If I buy an iphone used from another carrier ad buy a sim card from my carrier will that work? I have an iphone 4s with virgin mobile and I want an iphone 5 but all virgin mobile phones are so expensive! I looked on ebay for virgin mobile nano sim cards and they are only around 2 dollars. If I bought one of these sim cards and a used iphone 5 from another carrier would it work with my carrier?
  • How to switch at&t carrier on iphone 4 to sprint carrier? I have an iphone4 with at&t carrier and would like to connect it with Sprint if possible. My phone is jail broken and I unlocked it too but it still says at&t carrier on it and sprint won't connect it if its am at&t phone.