What are some alternatives?
When comparing Skype and Zoom, you can also consider the following products
Slack - A messaging app for teams who see through the Earth!
GoToMeeting - GoToMeeting is a web conferencing service offering a range of services which are available on Mac, PC, iOS and Android devices.
join.me - Instant screen sharing. Instant Aha!
Skype Meetings - Click a button to start a free video call
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
BlueJeans - Blue Jeans Network maintains a cloud-based video collaboration service that enables video conferencing using practically any device.