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

  2. Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.

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

  4. RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies

    freemium $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)

  5. WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

  6. Free and secure calls and messages to anyone, anywhere. Keep your conversations going no matter where you are.

  7. Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!

    freemium $69.0 / Monthly (6 users / 50 GB / CRM+)

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

  9. Private & Secure Messenger

  10. Facebook Messenger is a faster way to message.

  11. Open-source video calling and chat platform.

  12. Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.