UFO int.Call app for iPhone and iPad

Guidance for International Toll- Free calls from Smart Phone

Mobile Communications companies (SKT, KT, LGT) in
Korea provide certain amount of domestic free calls
when people use Smart Phones.
(Domestic free calls which hasn’t been used within 1
month will be automatically terminated and not to
carry over to next month.)
You can make a international calls totally free to USA,
Canada, Guam and China thru using our Applications
without additional international calling rates but using
free local minutes.
After used up all free local minutes, additional charge
is applied with local calling rates.
(You can check your free local minutes and remaining
balance minutes at Tele-communications which you
open your Phone.)
No Sign-up, No Monthly fee required. You just
download the App to use on your Smartphone.