A macOS parody overlay that mimics the classic "Activate Windows" watermark — but for macOS.
This lightweight Swift app displays a subtle floating message in the bottom-right corner of your screen:
Activate macOS
Go to System Settings to activate macOS.
Useful for memes, screenshots, pranks, or custom setups.
- Always-on-top transparent overlay
- Appears in bottom-right corner of all screens
- Click-through (doesn’t interfere with mouse input)
- Menu bar icon to quit the app
- Native macOS SwiftUI + AppKit implementation
- Lightweight and sandbox-friendly
- Download latest
.dmg - Drag
Activate macOS Overlay.appinto your Applications folder - Launch it — the overlay will appear and the app will sit in your menu bar
git clone https://github.com/amygdalios/activateMacOS.git
cd ActivateMacOSOverlay
open ActivateMacOSOverlay.xcodeprojThen build and run in Xcode
- Overlay appears as soon as the app is launched
- To quit, use the menu bar icon -> Quit Activate Overlay
MIT - Do whatever you want with it

