[Techtaffy Newsdesk]

Vonage has launched the Vonage Mobile, a new iPhone and Android app that lets users make free high-definition calls and send free texts to all users of the app, worldwide. The app works over Wi-Fi, 3G and 4G wireless data networks.

When calling those who have not yet downloaded the app, Vonage Mobile provides international calling with per-minute rates that are on average 70 per cent less than major mobile carriers and 30 per cent less than Skype, says the company. Users can add calling credit directly from the app through iTunes or Android Market  in increments of $4.99 and $9.99.