Use Blue Light Filter on iPhone to Protect Your Eyes and Sleep Better

Blue Light Filter on iPhone

Are you using your iPhone late into the night? Then you’ve likely experienced the strain of vivid blue light pouring from your screen. Luckily, with the iPhone’s Night Shift mode – also known as the Blue Light Filter on iPhone – you can reduce this blue light, giving your eyes a well-deserved break and improving your sleep quality. This guide will help you effectively utilize this tool on your iPhone and iPad.

Quick Answer: Blue light is a high-energy visible light often emitted by digital screens like iPhones and iPads. Prolonged exposure can cause eye strain and disrupt sleep.

What is Night Shift on iPhone?

Night Shift mode on your iPhone is a nifty tool that limits the blue light emitted from your device’s screen during the night. This tool operates by adjusting your screen’s color temperature to warmer hues, thus minimizing the disturbance to your natural sleep-wake cycle caused by exposure to blue light. The blue light filter on your iPhone can be activated manually or scheduled to automatically turn on and off at designated times.

Pros and Cons of Blue Light Filter iPhone


  1. Minimizes eye strain
  2. Encourages better sleep
  3. Boosts focus and productivity
  4. Generates a more natural-looking display
  5. Enables automatic on/off scheduling


  1. Potential minor impact on battery life
  2. Possible effects on color accuracy for photo and video editing

How to Turn Off Blue Light on iPhone

You can turn off the blue light on your iPhone in two ways:

Method 1: Via Settings

  1. Open the Settings app.
  2. Click on “Display & Brightness.”
  3. Select “Night Shift.”
  4. Toggle on “Scheduled.”
Enable Night Shift Mode on iPhone using Settings

Once enabled, you can adjust the color temperature of your screen to make it appear “Less Warm” or “More Warm,” according to your preference.

Adjust night shift color temperature

Method 2: Via Control Center

  1. Swipe down from the top-right corner of your Home screen to open the Control Center.
  2. Press and hold the brightness bar.
  3. Tap the “Night Shift” button to activate it.
Enable Night Shift Mode on iPhone using the control center

To turn off Night Shift or the blue light filter on your iPhone, follow the same steps but toggle off the option in the Night Shift settings.

How to Schedule Night Shift Mode on Your iPhone

  1. After enabling the “Scheduled” option in settings, select either “Sunset to Sunrise” or “Custom Schedule.”
  2. If you choose “Custom Schedule,” you can set the start and end times for Night Shift mode.
Schedule Night Shift Mode on iPhone

Once set, Night Shift will automatically turn on and off based on your preferences, offering a more comfortable viewing experience and potentially enhancing your sleep quality.

Best Blue Light Filter Apps for iPhone / iPad:

  1. Twilight
  2. Iris
  3. Night Owl
  4. Blue Light Filter & Night Mode – Night Shift

Additional Tips to Reduce Blue Light on iPhone

  1. iPad Blue Light Filter: If you’re using an iPad, a similar blue light filter is available in the settings.
  2. Blue Light Screen Protector iPhone: To further reduce blue light, you might consider a blue light screen protector for your iPhone.
  3. iPhone Color Filter: You can also use the iPhone’s color filter settings to adjust the color scheme of your display, which can further help to reduce strain on your eyes.


What is the difference between Dark Mode and Night Shift on the iPhone?

Dark Mode alters the color scheme of the user interface to darker shades, while Night Shift adjusts the color temperature to reduce blue light emission.

Which mode is better for the eyes?

Both Dark Mode and Night Shift are designed to lessen eye strain. While Dark Mode is generally considered more effective in bright environments.

Wrapping It Up…

Your Night Shift mode or Blue Light filter iPhone feature is now scheduled and will be activated according to your chosen timings. If you find this mode useful, consider using True Tone to further decrease screen brightness and blue light emissions. Remember, prioritizing your eye health includes regular breaks from screen time.