When comparing Unclutter vs Spectacle, the Slant community recommends Spectacle for most people. In the question“What are the best power user tools for macOS?” Spectacle is ranked 31st while Unclutter is ranked 63rd. The most important reason people chose Spectacle is:
Spectacle is licensed under MIT with source code available on [GitHub](https://github.com/eczarny/spectacle).
Ranked in these QuestionsQuestion Ranking
Pro Keep desktop clean(er)
Instead of keeping commonly used files on the desktop, you can tuck them away to the top of the screen. This can unclutter your screen, or create more room for more icons if you like quick access to everything.
Pro Convenient and fast access to files and notes
Unclutter lives in the navbar at the top of your screen, and is always accessible. Any files and notes stored in Unclutter can be quickly accessed from anywhere, with just a mouse movement and scrolling down.
Pro Free and open source
Spectacle is licensed under MIT with source code available on GitHub.
Pro Low footprint
Spectacle only uses up 18-19 MB of RAM, which means there is not much overhead by using this app.
Pro Simple hotkeys
Spectacle offers easy-to-remember preset hotkeys.
All windows in Spectacle can be controlled with keyboard shortcuts, so no mouse is needed. This makes for a fast way to control windows.
Pro Great UX
Spectacle is easy to use and configure. It's plug and play.
Pro Multi-monitor support
Con Can't keep visor open when typing in other applications
The unclutter visor will not stay open when working/typing in other apps. Sometimes it is desirable to use the visor to re-type things, it's not possible outside of copying and pasting, or opening and re-closing the visor.
Con $10 seems a bit much for what it does
Con Impossible to add new functions
While keyboard shortcuts can be changed for the available actions, there is no way to add custom actions which in turn limits the functionality of the app.
Con Breaks on macOS High Sierra / Chrome or Firefox
Doesn't support side by side windows.
Con Limited window sizing capabilities
You can use 1/2 of the screen vertically and horizontally (divide into 4 parts). You can also use the screen in thirds too, but only the left and right third: you can't use the 1/3 in the center. There is no way to do a more granular distribution.
Con Not maintained
The software is free, but no longer seems to be maintained.
Con Doesn't work with any Adobe products
There are some apps like Adobe Reader that do not work with Spectacle. Basically, any app with a heavily customized UI that breaks OS X accessibility will not work correctly under Spectacle.