Use in Europe
going to Europe (4countries). have iphone 4s and verizon service. don't want to get their global plan. have downloaded viber and skype. two questions: can i get wifi free so i can get emails, text and search web or use apps without charges?
Can I make calls using viber or skype with wifi without huge international charges? Is that how it works? Or should/can I unlock and get sim card? Sorry, I am new to this...