With S-unno, you can use your iPhone or iPad to make phone calls to any fixed or mobile number in more than 200 countries at absolutely low rates.
Rates start from as low as US 1cents/min. S-unno uses your 3G or WiFi connection to place these calls so that you can start saving now. Download is Free, Sign-up is Free! Remember NO subscriptions either! Not just phone calls, S-unno offers much more