Do you have trouble falling asleep? Your kids hyperactive when playing with the tablet before bed time? And also using your smart phone or tablet in the late evening? Twilight is the solution.
Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm. It is another inability to fall asleep.
Seems like the cause is the photoreceptor in your eyes, called Melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480 nm range because it may suppress Melatonin production. Melatonin is a hormone responsible for your healthy sleep-wake cycles. In experimental scientific studies it has been shown an average person reading on a tablet or smart phone for a couple of hours. It before bed time may find their sleep delayed by about an hour.
Finally, the Twilight app makes your device screen adapt to the time of the day. It filters the flux of blue light emitted by your phone or tablet after sunset and protects your eyes. Most of the functions are a soft and pleasant red filters. The filter intensity is smoothly adjusted to the sun cycle. Sun cycle is based on your local sunset and sunrise times.
For a desktop alternative, also try RedShift (Linux) and on Windows the app which has no relation to this project whatsoever, whose name cannot be said aloud or whispered as it is a Trademark, lets call it Lord Voldemort of the blue light flux filtering apps.Guessed it? Let us also know in the comments.
Other versions of this app: