On the iPhone or iPad, into the App Store to download software to your mobile and Worldfone install software on your smartphone. After you have completed the software installation, run the installation continues to use the service account Worldfone

Worldfone  were available for iPhone ®, iPad ® iPod ®, Android ™ Phone, Android ™ tablet. Worldfone now offers many forms of recharge. Offering the most convenience to customers, can recharge every time, anywhere. DIRECT DEBUGS ON WORLDFONE DIALER SOFTWARE
Support for scratch cards: Viettel, Mobifone and Worldfone cards.