F.lux vs Slate

Helps provide better sleep for more energy during the day.

Decreases color temperature at night, changing the normally fluorescent blue of an LCD monitor to a soft orange. Much easier on the eyes, especially in a low-light environment.

The transition from daytime to nighttime color modes takes an hour by default and will detect your current timezone, meaning that it will happen in the background at sunset, often without you noticing.

Slate is similar to Linux WMs like Xmonad in that it is nearly infinitely configurable. You can either use the default configuration file or just Javascript for very complex/dynamic settings. Slate also offers editing a ".js" or a ".slate" file for configuration.

Hotkeys can be set to re-size and focus windows, as well as activate layout presets.

Slate is completely free to download and use, which is a great option in a field of Mac WMs that often costs money to use.

Slate allows for customizing the config file in order to emulate tiling windows.

By using a feature called "snapshots", users can set up different default window layouts in Slate that they can switch to and from on the fly.

Slate offers window hints which are an intuitive way to change window focus.