In fact, it's almost as fast as iRapp was, and it doesn't have any problems with system keys. I finally tried a trial of Remotix which costs $39 and uses the VNC protocol, yet for some reason it's enormously faster when connecting to OS X's built-in VNC server (known as 'Screen Sharing' in system settings) than any of the other clients. UltraVNC was the fastest of the lot if set to 'Ultra' speed on a LAN but drawing menus would still stall for up to 5 seconds and it has zero support for sending Cmd key. I've tried all the free VNC clients: RealVNC, TightVNC, TigerVNC, UltraVNC, and TurboVNC and they are all laggy in various places, even on a LAN, and each has various problems with transmitting system keys, especially Cmd-Tab. So far, I have resisted paying Aqua $249 knowing that their software may become useless with a future macOS update and they might not fix it for 1+ years again. iRapp had OS X El Capitan support a few months after it was released, but when I asked for a trial license from Aqua they said Aqua is still a week or more out from having a beta with support for El Capitan (and this was over a year after EC was released!). Aqua is supposedly faster (they've improved on the RDP protocol and call it AAP) but unfortunately they are slow in development. In fact, Aqua was first with RDP and they sued iRapp for reverse engineering their product, but lost the case. Even a trial license I had a copy of wouldn't install without their license server being up.Īfter some research, I found that Aqua Connect is the only iRapp competitor around that offers an OS X RDP server. As of around my license for iRapp server said it was blocked because it couldn't contact the license server and I could find no way to get it working again. IRapp was my favorite fast screen sharing server for OS X, but they went bankrupt around June 2016 and their license server was taken down at some point.

Mac os remote desktop server