From Innovation Works:Best Free Phone Number App For IphoneBest Free Phone Number Apps v 30% Cheaper than Skype. v $0.6 USD free credit for cheap international calls. v RECORD phone calls for free. v Able to display your current phone number (Caller ID). v Cheap calls to India, China, USA, Nigeria, Mexico, UK, Nigeria, Brazil, Thailand, UAE, Germany, France, Kuwait, Australia, Indonesia, Philipp..