I think it's the feeling. Your other windows don't go dark, they soften into a blur, and your screen feels calm, instantly. It was the first app to do that, and I've kept polishing it ever since. It holds 4.9 out of 5 from 120 ratings on Gumroad, and 5,385 people have bought it.

Because I sweat the details. One shake of the cursor and you're in focus. The blur, the timing, the way a window comes back: all tuned until it feels like it came with your Mac. It handles real work too: apps that belong together, multiple screens, Stage Manager. I ship updates all the time, and you pay once, not every month. Others borrowed the idea, some even the design (here's one, side by side). Monocle is the original, and it keeps getting better.

Yes. Put them in an App Group and they stay in focus together, like your notes next to a browser. You can also keep every window of an app sharp, or ignore the apps you never want blurred.

Both. Choose per-screen or global focus across your displays. Stage Manager is detected on its own: your window strip stays visible, or blurs too if you like.

Fullscreen puts one app in a space of its own and hides the rest. Monocle keeps your windows where you left them, just quiet, one shake from coming back. No rearranging, no hunting for windows, and it feels right on a big or ultrawide screen.

No. Monocle has no analytics. It only talks to Gumroad to check your license and to heyiam.dk to check for updates.