I had to read a lot of text to understand this was a remote desktop app. You might get more users if you're clearer about what it is.
> Any window from your Mac, on your iPhone and iPad.
I don't think it can get any more clear than that.
Is it a screenshot tool or emulator or view-only screen sharing? You have to get through the second paragraph to understand what it is.
"Use any window" would be better I think.