Viber - Free and secure calls and messages to anyone, anywhere. Keep your conversations going no matter where you are.
Arvia for Slack - Start quick video calls in Slack channels.
BNESIM - The all-in-one app for your communications. Voice, SMS, rooms, data SIM & eSIM in 200+ countries without roaming fees. Double data on the first top-up. Two years back-to-back winner of the "World Travel awards" for 2019 and 2020.
Moon Dialer - Use free voip & wifi calling app for unlimited international calling. Moon Dialer is one stop solution for call recording, call scheduling and call forwarding.
Amivox - Would you like to make international calls either free or at local rates ?
letsBrik - A Skype Alternative that is entirely web browser based.