6 per day for additional lines and no additional charges after 10 days, you are only charged on days you use it. it’s super convenient and well worth it. once you add the international plan, you never have to think about it again, you can just travel I think last time I went to Europe I paid about $120 for my wife and I to have our phones the whole trip. Maybe I can find a better deal, but we’re only talking about a few bucks on traveling to Europe. I prefer convience.