What are some alternatives?
When comparing Skype and join.me, 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.
Zoom - Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based conference room solution.
TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.
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.