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f.lux vs Spectacle

Professional comparison and analysis to help you choose the right software solution for your needs.

f.lux icon
f.lux
Spectacle icon
Spectacle

f.lux vs Spectacle: The Verdict

⚡ Summary:

f.lux: f.lux is a free app that adjusts a computer's display color temperature based on the time of day, making screens appear warmer at night to reduce eye strain and disrupt sleep cycles less.

Spectacle: Spectacle is an open-source program that allows users to easily organize windows on their desktop using customizable keyboard shortcuts. It works on macOS and is useful for arranging many open application windows.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature f.lux Spectacle
Sugggest Score — —
Category Os & Utilities Os & Utilities
Pricing Free Open Source

Product Overview

f.lux
f.lux

Description: f.lux is a free app that adjusts a computer's display color temperature based on the time of day, making screens appear warmer at night to reduce eye strain and disrupt sleep cycles less.

Type: software

Pricing: Free

Spectacle
Spectacle

Description: Spectacle is an open-source program that allows users to easily organize windows on their desktop using customizable keyboard shortcuts. It works on macOS and is useful for arranging many open application windows.

Type: software

Pricing: Open Source

Key Features Comparison

f.lux
f.lux Features
  • Adjusts screen color temperature based on time of day
  • Makes screen appear warmer at night
  • Can be scheduled to change color temperature automatically
  • Has options to customize color temperature
  • Works across Windows, Mac, Linux, iOS and Android
Spectacle
Spectacle Features
  • Keyboard shortcuts to move and resize windows
  • Save and load window layouts
  • Support for multiple monitors
  • Fullscreen mode
  • Picture in Picture mode
  • Dark mode

Pros & Cons Analysis

f.lux
f.lux

Pros

  • Reduces eye strain from blue light at night
  • Helps maintain natural sleep cycles
  • Easy to install and use
  • Completely free with no ads or upsells

Cons

  • May take some time to get used to color changes
  • Limited customization options
  • Requires manual adjustments for daytime use
Spectacle
Spectacle

Pros

  • Free and open source
  • Lightweight and easy to use
  • Customizable keyboard shortcuts
  • Supports multiple monitors well
  • Allows quick window management

Cons

  • Limited to macOS only
  • Lacks some advanced window management features
  • Can conflict with some other keyboard shortcuts

Pricing Comparison

f.lux
f.lux
  • Free
Spectacle
Spectacle
  • Open Source

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Learn More About Each Product

f.lux
f.lux
Reviews, pricing & alternatives →
Spectacle
Spectacle
Reviews, pricing & alternatives →

Ready to Make Your Decision?

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