Nubefone is a low-cost calling app available on Android devices. It offers clear call quality without the need for an internet connection during the call. The app has low calling rates to landlines and mobiles anywhere, with no fees or hidden charges. Users can earn free credit for every invited contact who uses Nubefone, and there is no expiration date for the balance. The app is compatible with all operators, and the contact being called does not need to have Nubefone.

To create a Nubefone account, users need a phone number from one of the 50 countries listed, including the US, UK, Germany, and France. Users can make phone calls to anywhere in the world, and whoever they call does not need to have the app. Additionally, users can add up to 10 more users to their account, including per-user usage control, and one single shared top-up for all.

For businesses, Nubefone offers special accounts for cost control and centralized user management. Overall, Nubefone provides an easy and affordable way to make international calls without compromising on call quality.