Will I get charged for using 3G Internet if I have the unlimited data plan?

My carrier is Sprint. I have an iPhone 4. I'm asking if I'll be charged if I don't use Wi-Fi.

If you have the unlimited data plan, then no. Well, unless you go crazy and use your internet without Wi-Fi 24-7.It will send you a text when you're reaching the limit of non-Wi-Fi Internet. But, if you have Wi-Fi, then you can use it whenever you want for as long as you want

If you have unlimited internet and you're using 3G you won't be charged. The only way you'd be charged is if you didn't have unlimited internet and weren't using Wi-Fi.