Night Light

An app to adjust blue light intensity, powered by KCAL

Night light is an open-source app which uses KCAL to adjust blue light intensity of the display colors, so that viewing the screen at dark becomes pleasant for the eyes, and help you fall asleep faster (this is what science have proven so...).

Features

  • Control blue/green light filter intensities to your liking.
  • Or, control the color temperature of the display.
  • Quick Setting tile for easy toggling on/off night light anywhere.
  • Automatic switching on/off night light at user specified timings.
  • Supports sunset/sunrise timings. (Limitation: Once sunset/sunrise times are set, Night Light will be toggled every day at that time. Calculating sunset/sunrise times everyday and setting times based on it is not supported as of now.)
  • Create profiles, and then apply it with one tap, or let other apps (like Tasker) do it for you.

Requirements

  • Kernel supporting KCAL.
  • Root access.

Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.5.1 (19) - Added on 2018-06-22

    This version requires Android ? or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • access approximate location (network-based) only in the foreground
      This app can get your location based on network sources such as cell towers and Wi-Fi networks, but only when the app is in the foreground. These location services must be turned on and available on your phone for the app to be able to use them.
    • access precise location only in the foreground
      This app can get your exact location only when it is in the foreground. These location services must be turned on and available on your phone for the app to be able to use them. This may increase battery consumption.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

    Download APK 2.4 MiB PGP Signature

  • Version 1.2.0 (12) - Added on 2018-02-16

    This version requires Android ? or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • access approximate location (network-based) only in the foreground
      This app can get your location based on network sources such as cell towers and Wi-Fi networks, but only when the app is in the foreground. These location services must be turned on and available on your phone for the app to be able to use them.
    • access precise location only in the foreground
      This app can get your exact location only when it is in the foreground. These location services must be turned on and available on your phone for the app to be able to use them. This may increase battery consumption.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

    Download APK 2.0 MiB PGP Signature

  • Version 1.1.6 (11) - Added on 2018-02-16

    This version requires Android ? or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • access approximate location (network-based) only in the foreground
      This app can get your location based on network sources such as cell towers and Wi-Fi networks, but only when the app is in the foreground. These location services must be turned on and available on your phone for the app to be able to use them.
    • access precise location only in the foreground
      This app can get your exact location only when it is in the foreground. These location services must be turned on and available on your phone for the app to be able to use them. This may increase battery consumption.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

    Download APK 2.0 MiB PGP Signature