Other than the obvious, Hangouts, which is closed source and probably just as vulnerable:<p><a href="https:&#x2F;&#x2F;appr.tc&#x2F;" rel="nofollow">https:&#x2F;&#x2F;appr.tc&#x2F;</a>
<a href="https:&#x2F;&#x2F;github.com&#x2F;webrtc&#x2F;apprtc" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;webrtc&#x2F;apprtc</a>