There are many alternatives to ooVoo for Windows and since it's discontinued a lot of people are looking for a replacement. The best Windows alternative is Element. It's not free, so if you're looking for a free alternative, you could try Jitsi or Skype. If that doesn't suit you, our users have ranked more than 50 alternatives to ooVoo and many of them is available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to ooVoo are Wire (Free Personal, Open Source), Hangouts (Free), Zoom (Freemium) and BigBlueButton (Free, Open Source).
Element is a secure collaboration and messaging app based on the Matrix protocol. It’s decentralised to deliver digital sovereignty, and based on an open standard for easy connections and interoperability. It is end-to-end encrypted by default.
Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!, GTalk/Hangouts extensions, as well as OTR, ZRTP, etc.
Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption. Why Wire?
Technitium Bit Chat is a secure, peer-to-peer (p2p), open source instant messenger designed to provide end-to-end encryption. It can be used over Internet and private LAN networks for instant messaging and file transfer.