

You can turn f.lux off at any time by choosing "Off" under the Enabled option in f.lux settings. If you don't like the shift, uninstall f.lux and reboot your phone to restore to normal colors. IPhone 3g support is experimental and may slightly shift your colors during daytime.
#F.lux blue light install#
If you install it with Location Services off, you should enable it in the settings.

The current version of f.lux requires Location Services to be enabled. Also, we don't record or track where you are - there's no server on our end. f.lux itself uses less than 2 seconds of CPU each day.į.lux only looks for your location when you run the app. f.lux should make your phone look just like a book under your room lighting.į.lux should have a minor impact on your battery life. If your screen appears orange, open settings and select a different lighting type. By tapping each lighting option you can see a short preview of how your screen will look like after sunset. Choose your lighting type and transition speed (for older devices the long transition is instant to avoid flickering). You could use f.lux because it makes you sleep better, or you could just use it just because it makes your computer look better. It's even possible that you're staying up too late because of your computer. Either way your eyes will thank you.Īfter installation: open Settings and tap f.lux. f.lux fixes this: it makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day. You can use f.lux because it makes you sleep better, or you could use it because it just makes you look better. Plus, you'll never glow blue in a restaurant again.

They also say that it's easier to wind down and go to sleep after using a f.lux-enabled device at night. Our users say that f.lux prevents eyestrain. Evidence suggests that even just a little extra blue light at night can keep you awake later and negatively affect the quality of your sleep. Sleep researchers have just begun studying the effects of night-time usage of laptops, cell phones, iPads and other devices that emit blue light. And it turns out that timing matters, too: Blue light during the day is great for your circadian rhythm. We realized that looking at the sun all night long might not be such a good idea.Īfter researching blue light's effects on health, we found lots of evidence that color matters even more than brightness. They looked fine during the day, but at night, they were much too blue. We made f.lux because one day we noticed that all our laptops were the wrong color temperature at night. At dawn, f.lux returns your phone to daylight colors. Select the type of lighting in the room you're in at night, and then forget about it.Įach evening at sunset, f.lux warms up the colors on your phone. Have you ever seen someone using a mobile phone in a bar or dark restaurant and noticed the bright blue glow coming from the screen? f.lux fixes this. If you encounter this, please reboot the device (don't respring) to fix it. Older iOS versions: Sometimes when updating Cydia and f.lux at the same time, the Reboot Device button will not work, and f.lux will not run. If you see the f.lux app crash when launched, it seems to be incompatible with Medusa right now: thanks reddit for the report. Compatible with devices running iOS5/6/7/8.į.lux warms up your screen to match your lighting at night.
