I recommend Boss revolution + Google voice for international calls. Their apps are simple to use for users but not Rebtel. I downloaded a week ago and I find it hard to use when I call for support their response came after 2 days, until now I had my 60 minutes I bought within their app couldn't use it and it's still active what a heck!?? You guys need to fix your app for sure - don't recommend it to no one! #2538661