What are some alternatives?
When comparing Jitsi and Skype, you can also consider the following products
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Slack - A messaging app for teams who see through the Earth!
Pidgin - Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
join.me - Instant screen sharing. Instant Aha!
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
GoToMeeting - GoToMeeting is a web conferencing service offering a range of services which are available on Mac, PC, iOS and Android devices.