Call international numbers for less with the O2 International Calling Card app. The O2 International calling card app allows you to buy a virtual O2 Calling Card and to make international calls to mobiles and landlines almost anywhere in the world (including Thailand, India, China, USA, Canada, Nigeria, Pakistan, Poland and South Africa). It's available to customers on any UK mobile network.It's great value with rates starting from just 1p per minute. Calling is easy, as it works just like an international calling card you would buy from a shop. Inside the app tap "Make a call with this card" and then either choose a contact, or dial the number - the app will do the rest automatically. (Note you'll see the app call 020 3505 5555 this is free from an O2 mobile phone)It really is the international calling card with nothing to hide. No hidden charges, No vanishing minutes, just clear calls. To get started:Step 1 Download the app for freeStep 2 Buy your calling card through the app, using your iTunes accountStep 3 "scratch" off the panel to reveal your pinStep 4 click on make a call and either dial the number or select from your contact list.You can't use this app with any O2 International calling cards you've already bought, or use calling cards bought within the app outside of it.The Calling Card terms and conditions can be found at http://www.o2.co.uk/termsandconditions/productsandservices