There are better apps out there
If the screens are stacked one on top of the other, this app doesn’t know what to do. Each screen should be treated as it’s own space and the active window should dock on the screen it’s on. A lot of times, the window goes to the opposite screen. This is great if you have one monitor. Otherwise, it just gets confused. Not worth paying for that…
UPDATE: I’ve decided to give up on this app because there are too many things wrong. I found another piece of software that I was instantly -magnet-ically attracted to so I use that instead now….
frankz00 about Split Screen, v3.11