International call app for iPhone

Hey, what VoIP call or call app do you use when making international call? I'm using Global Call app to make international call from my mobile. Somewhat similar to Skype, with a slight cheaper rate for some countries. Share your info here, thanks.
http://thenanobyte.com/2013/05/global-call-how-to-get-more-credit-on-y...

I use google voice via the talkatone app for free calls to/from the US (free, but requires a US ip address for the sign up process) or acrobits softphone combined with a variety of sip services for other calls.

I've tried fring, skype and others in the past but don't use them much anymore since google voice became easier to use.

btw, anyone know a good voip or sip service for Japan? I'd like to get a Japanese number eventually.

i've tried many telephone apps for international call. Many useful VoIP program depending on your need. I like skype application for the fact it can call both land and mobile line, but it drained my battery if I stay log in. And for me I need to call my family in Jakarta very often, for this I prefer global call than skype simply because the rate is better.

I like google voice and also use facetime for calling another iPhone users. That's right for Indonesia I think globalcall rate is slightly cheaper, and if you want to get extra credit you can also like their fb page http://goo.gl/pejjc

I don't know whether that's the same phone aplication. I've downloaded this https://play.google.com/store/apps/details?id=com.lguplus.GCAClient or for the apple user https://itunes.apple.com/kr/app/globalcall-free-$1.50-credit/id577717588?l=en&mt=8

same one yeah. here let me add the site www.globalcallapp.com it's rate is very low and worth to try, especially for calling landline number or not smartphone users. you can also see the video http://www.youtube.com/watch?v=Y-kP3ocwS90

For more free credit you can invite your contacts to download the global call app, and for 1 person downloading the call app successfully you'll get 0.5 points. You need minimum 10 points to redeem it.

hey chocochick if you are going to top up your Global Call app credit balance, you can take advantage of this bonus week promo on their Facebook page https://www.facebook.com/uglobalcall/app_193371724140087 This will end tomorrow, so you need to hurry, and the bonus credit can be received on 16 July. So if you buy $10.00 you'll get total of $11.10