1. FireRTC is the easiest way to call from your computer for free

  2. qiscus organizes your work discussions into rooms and topics to help your team become more...

  3. Wiggio is a completely free, online toolkit that makes it easy to work in groups.

  4. Make collaboration simple with Circuit by Unify. Circuit brings HD video, voice, screen share, messaging and file sharing into a single pane of glass.

  5. The best HD video conferencing & online meeting services with webinar and screen sharing. Available for Mac, iOS, Windows, Android and meeting rooms.

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

  7. A small, open-source alternative to Slack

  8. Openfire (formerly Wildfire) is a cross-platform instant messaging (IM) and groupchat server.

  9. Browser-based app to visualize the frequencies of an audio file.

  10. Brosix will improve the efficiency and decrease the expenses of your business by providing you all-in-one features package and many control functions.

    paid Free Trial $4.0 / Annually (Private Team Network, Full Control over user accounts)

  11. Personalized financial planning for everyone

  12. Cloud-based video conferencing software