We like to think they're both great!
The Chrome app was the original Videostream, and is probably what you're used to if you've been using Videostream for a long time. You can get the Chrome app here: https://chrome.google.com/webstore/detail/videostream-for-google-ch/cnciopoikihiagdjbjpnocolokfelagl?hl=en
We've recently released a new desktop beta version! You can download that here: http://getvideostream.com/download/#
Often if you're having issues, switching to the other version will fix them!