1. Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based conference room solution.

  2. GoToMeeting is a web conferencing service offering a range of services which are available on Mac, PC, iOS and Android devices.

  3. Hangouts bring conversations to life with photos, emoji, and even group video calls for free. Connect with friends across computers, Android, and Apple devices.

  4. Skype for Business, formerly Lync, is unified communications platform that enables instant messaging, conferencing and online meetings

  5. IBM Sametime is an instant messaging software with integrated voice, data, and video solutions.

  6. UberConference provides a rich visual interface for conference calls. Simple, visual, and free to use, it's audio conferencing done right.

  7. InterCall is a service provider of cloud-based unified communications services.

  8. Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

  9. A messaging app for teams who see through the Earth!

  10. Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.