• Guest, The rules for the P & N subforum have been updated to prohibit "ad hominem" or personal attacks against other posters. See the full details in the post "Politics and News Rules & Guidelines."

app to convert tablet into an extended monitor


Diamond Member
Jun 16, 2007
Funny, I was just researching this last week. I wanted to use my Galaxy Tab S6 as a secondary display. There was some recommendations for Duet, but I guess some recent updates seemed to have really messed up this app or something. So I didn't try it.

I ended up going with spacedesk.
For basic wireless connectivity it works amazing. I had to install an app on my host PC. And then I add my PC to the Android app and connect. Windows treats the Android tablet as a second monitor. I can change resolution and scaling, change the position of the screen, all the usual stuff you can do with a regular attached secondary monitor.

I only ran into two problems.
First this says it supports USB tethering, but I could never get that to work. And their support forum seemed to indicate you'll still need a wireless connection even if using USB tethering. Seems a little complicated and maybe not fully functional.
Second is I tried this on a work issued laptop with some firewall restrictions and I could never connect to that laptop. I didn't troubleshoot this a lot though, perhaps I can use a different port. But I didn't really need it on that laptop so I didn't pursue that further.

Overall super impressed that this is a free piece of software and works really smoothly. I'm using wifi and have all the graphics settings maxed out and the display looks good and still pretty fast for web browsing and apps (I haven't tried gaming or watching videos on the secondary display).


Diamond Member
Dec 27, 2001
I ended up going with spacedesk.
i am happy to say this works! simply amazing over wifi and it's free. i can touch the tablet n move things around with my fingers, very cool! can't believe the app is free over wifi. there is about a .3 seconds delay. maybe it will be better if over usb cable, but i have not tried.