f.lux is a desktop app that automatically adjusts your screen's color temperature based on the time of day. During daylight hours, it keeps your display bright and cool, similar to natural sunlight.

The flashlight I use most often is built into my phone and it’s around 50 lumens. It works fine up close, but there are pocket-sized flashlights that can illuminate an entire football field. There are ...

You can change the color of your iPhone screen in several ways through the device's Accessibility settings. Here's how to do it.