Do I get charged for using Twitter on my phone?

[Moe]

It depends if you have the data package with your phone. If you don't, you will get charged extra for using it. If you already have the data package, you will not be charged because you pay to use the internet(which is how you can use the twitter) monthly.

OR

How do you do it. Do you tweet via text message?(I'm not sure if you can do this, i really don't use Twitter, i just face book though. You can update your status and get text message alerts when you get a new friend request and stuff like that. Is that how you do it on your phone, via text message? Or are you actually using the web to use Twitter? OK bottom line, If you are doing it Via Text message(If you can do that) it should be free. If you are using the mobile web to do it, then you will be charged.