Night Shift: Blue Light Filter

Night Shift: Blue Light Filter

An app that adjusts screen color temperature to reduce blue light exposure, preventing eye strain and sleep issues

What is Night Shift: Blue Light Filter?

Night Shift is an app developed by Apple that adjusts the colors of your screen to reduce exposure to blue light. It makes the screen colors warmer, shifting from cool blues to warmer yellows and oranges. This helps prevent eye strain as well as sleep issues that can be caused by blue light exposure from screens at night.

Blue light tricks the brain into thinking it's daytime, which can make it more difficult to fall and stay asleep. Night Shift reduces the blue light coming from the screen, allowing your brain to produce melatonin - the sleep hormone. This makes it easier to fall asleep and sleep better.

The app works automatically by using sunset/sunrise data for your location to shift colors at night. You can also manually enable it or create custom schedules. Night Shift can be enabled system-wide, or on a per-app basis for maximum control.

Studies have shown that reducing evening blue light exposure leads to improved sleep quality for most people. Along with preventing eye strain from extended use, Night Shift can be an important tool for improving sleep hygiene and getting better rest.

Night Shift: Blue Light Filter Features

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