Optimize Your Nighttime Viewing with Darker


Darker is an innovative application designed to lower your screen brightness to extremely low levels, helping to prevent eyestrain during the night. With its built-in color filter, you can easily adjust the color of your display, making it perfect for filtering out harsh white backgrounds.

Upgrade Options


Users have the flexibility to either upgrade the free version to Pro through an in-app purchase or directly purchase the Pro version (available in countries that do not support in-app purchases). Both versions offer the same functionality.

Exclusive Features in the Pro Version



  • Auto-On & Auto-Off

  • Start at Boot

  • Lower Brightness Below 20%

  • Darken Navigation Bar

  • Custom Filter Colors

  • Root Mode

  • Customizable Notification Buttons

    • Up to three buttons can be added for quick access.

    • Buttons to increase and decrease brightness (+5%, -5%, +10%, -10%).

    • Buttons to set a specific brightness (@0%, @10%, @20%, ... , @90%, @100%).

    • Quick toggles for stop, pause, reset, and color filter.



Important Note


When manually installing APK files, Android may block the "Install" button when Darker is running. This is a protective measure to prevent malicious apps from disguising the install button. To resolve this, simply pause Darker.

Accessibility Services


Darker requires the use of accessibility services to darken the screen. Rest assured, no data will be accessed or shared via the AccessibilityService API.

Color Filter Functionality


The color filter operates similarly to the desktop version of f.lux. Selecting a redder color will significantly reduce the blue light emitted from your display, enhancing your nighttime viewing experience.

Tasker Support


Darker includes Tasker support, enabling you to send commands using the following intents:



  • darkerpro.STOP

  • darkerpro.PAUSE

  • darkerpro.INCREASE_5

  • darkerpro.INCREASE_10

  • darkerpro.DECREASE_5

  • darkerpro.DECREASE_10

  • darkerpro.SET_10

  • darkerpro.SET_20

  • darkerpro.SET_30

  • darkerpro.SET_40

  • darkerpro.SET_50

  • darkerpro.SET_60

  • darkerpro.SET_70

  • darkerpro.SET_80

  • darkerpro.SET_90

  • darkerpro.SET_100

  • darkerpro.TOGGLE_COLOR

  • darkerpro.ENABLE_COLOR

  • darkerpro.DISABLE_COLOR


To add these intents to Tasker, navigate to Action Category → System → Send Intent → Action, and leave the other fields at their default settings. Please note that the intents are case sensitive.

Additional Parameters


The following intents require an extra parameter in the "Extra" field:



  • darkerpro.SETCOLOR - "Extra" field: COLOR:1~16 (Colors are numbered left to right, top to bottom)

  • darkerpro.COLORSTRENGTH - "Extra" field: STRENGTH:1~10


For the intent below, set the "Target" field to Service:



  • darkerpro.START