Hi, Im a new koodo member. I have the samsung galaxy ace 2, my plan is $25 talk and text, 0 add ons. The guy that helped me out said that I could go on wifi and I wouldn't be charged. He also said that there is free apps and such over google play. There were a lot of people in line waiting for him so I didn't really get to ask a lot of questions. Im not techy at all. So here they are.. If I take pictures/videos on my phone will this use up data? If I download free apps over wifi will this use data? What is data? How much will I be charged if I go over 0 mb? What does this even mean? I really don't want to be charged an insane amount of money if Im going over a limit with out knowing cuz Im a noob. A destitute student noob. Thanks for your answers.