No it just doesn't work. It is still available on the Mac App Store and when I contacted them on Twitter they said "oh, we will look into the problem you are having" but at the same time their website says it says the OSX app is discontinued due to bugs in OSX Bluetooth driver https://authy.zendesk.com/hc/en-us/articles/202760296-Having...

I would not trust such liars with credentials to my most important services.