BOSS Revolution is a global communication and money transfer service offering cheap international calling, mobile top-ups, and low-fee international money transfers for people staying connected abroad.

Yolla is a mobile application offering cheap international calls to over 190 countries, utilizing internet data (WiFi, 3G, 4G/LTE) and allowing users to keep their original phone number.

ZippCall is a pay-as-you-go service for making cheap international calls from a web browser or mobile apps, offering rates from $0.02/min with no subscriptions.