When comparing ShiftIt vs Window Tidy, the Slant community recommends ShiftIt for most people. In the question“What is the best window manager for Mac?” ShiftIt is ranked 2nd while Window Tidy is ranked 33rd. The most important reason people chose ShiftIt is:
ShiftIt is configured through a simple UI where you simply press the hotkeys you wish to map to a certain action.
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Pros
Pro Easy to configure
ShiftIt is configured through a simple UI where you simply press the hotkeys you wish to map to a certain action.
Pro Free
Pro Intuitive
ShiftIt is very straight-forward to use for most frequent usages.
Pro Open source
Pro Configuration can be committed to your personal dotfiles repository
Configuration winds up living in .hammerspoon/init.lua and .hammerspoon/Spoons/ShiftIt.lua. Very easy to track configuration changes.
Pro Easy drag and drop interface
When you want to resize a window you just drag it on the screen and your configured workspaces appear immediately, semi-transparent. Then you just drag and drop your window above the configuration that you want to use.
Pro Allows multiple workspace configurations
Window Tidy facilitates not just window sizes, but windows that are precisely sized to fit together to fill up the screen.
Pro Fine tune window sizes
You can set up windows to fit as large or as small of an area on your screen as you would like. For example, if you want a 1/3 left, 1/3, center, 1/9 top right, 1/9 center right, and 1/9 bottom right, you can and it is easy to set up.
Cons
Con A little slow
Similar to Spectacle, but it has a few more features, such as being able to pick the size adjustment increments. Spectacle was a little faster, though. Repeated size changes or moves in succession can cause it to wait for it to complete.
Con Imprecise when readjusting sizes
Con Doesn't support moving windows between workspaces
There's no way to move a window to a different workspace with hotkeys in ShiftIt.
Con Doesn't work - has been abandoned
Con Workspaces don't show up when you drag a window
Workspaces will only appear on one desktop, but not the others.