When using Kik messenger on iPhone with your data plan, how much mb does it use?

I'm getting an iPhone, and I tend to use kik messenger a lot on my blackberry already. How much mb of Internet does Kik use to send and/or receive messages, and picture messages? Is 500mb too low for someone who tends to use it a lot without wifi? Answers are greatly appreciated.

52mb

500 Megabytes equals about 500, 000 Messages. If not more.

52 MB it will get.