Best Mac OS X Softwares to Make Video Conference Call

Freemium

Skype is an instant messaging and VOIP (Voice Over Internet Protocol) client to communicate with people in a distant place.

Open Source

Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application.

Find apps to do interesting things:

Share files remotely with other people

Custom cover image

share images, videos or audios with your friends and family.

Synchronize files between two directories.

Develop games for macOS devices.

Take a screenshot and share it with others in in few clicks.